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• Variation in resistin gene promoter not associated with polycystic ovary syndrome

  Urbanek, M., Du, Y., Silander, K., Collins, F. S., Steppan, C. M., Strauss, J. F., Dunaif, A., Spielman, R. S. & Legro, R. S., Jan 1 2003, In: Diabetes. 52, 1, p. 214-217 4 p.

  Research output: Contribution to journal › Article › peer-review
  70 Scopus citations

• Variation in resource utilization for the management of uncomplicated community-acquired pneumonia across community and children's hospitals

  Leyenaar, J. K., Lagu, T., Shieh, M. S., Pekow, P. S. & Lindenauer, P. K., Sep 2014, In: Journal of Pediatrics. 165, 3, p. 585-591 7 p.

  Research output: Contribution to journal › Article › peer-review
  24 Scopus citations

• Variation in resting heart rate over 4 years and the risks of myocardial infarction and death among older adults

  Floyd, J. S., Sitlani, C. M., Wiggins, K. L., Wallace, E., Suchy-Dicey, A., Abbasi, S. A., Carnethon, M. R., Siscovick, D. S., Sotoodehnia, N., Heckbert, S. R., McKnight, B., Rice, K. M. & Psaty, B. M., Jan 1 2015, In: Heart. 101, 2, p. 132-138 7 p.

  Research output: Contribution to journal › Article › peer-review
  20 Scopus citations

• Variation in seizure prophylaxis in severe pediatric traumatic brain injury

  Ostahowski, P. J., Kannan, N., Wainwright, M. S., Qiu, Q., Mink, R. B., Groner, J. I., Bell, M. J., Giza, C. C., Zatzick, D. F., Ellenbogen, R. G., Boyle, L. N., Mitchell, P. H. & Vavilala, M. S., Oct 2016, In: Journal of Neurosurgery: Pediatrics. 18, 4, p. 499-506 8 p.

  Research output: Contribution to journal › Article › peer-review
  14 Scopus citations

• Variation in smoking cessation after vascular operations

  Hoel, A. W., Nolan, B. W., Goodney, P. P., Zhao, Y., Schanzer, A., Stanley, A. C., Eldrup-Jorgensen, J. & Cronenwett, J. L., May 2013, In: Journal of Vascular Surgery. 57, 5, p. 1338-1344.e1

  Research output: Contribution to journal › Article › peer-review

  Open Access
  31 Scopus citations

• Variation in Suicide Risk among Subgroups of Sexual and Gender Minority College Students

  Horwitz, A. G., Berona, J., Busby, D. R., Eisenberg, D., Zheng, K., Pistorello, J., Albucher, R., Coryell, W., Favorite, T., Walloch, J. C. & King, C. A., Oct 1 2020, In: Suicide and Life-Threatening Behavior. 50, 5, p. 1041-1053 13 p.

  Research output: Contribution to journal › Article › peer-review
  26 Scopus citations

• Variation in Testosterone Levels and Health-related Quality of Life in Men Diagnosed With Prostate Cancer on Active Surveillance

  Cohen, A., Lapin, B., Wang, C. H., Helfand, B., Victorson, D. & Novakovic, K., Aug 1 2016, In: Urology. 94, p. 180-187 8 p.

  Research output: Contribution to journal › Article › peer-review
  11 Scopus citations

• Variation in the accuracy of ultrasound for the detection of intubation by endotracheal tube size

  Gottlieb, M., Holladay, D., Nakitende, D., Hexom, B., Patel, U., Serici, A., Shah, S. C. & Bailitz, J., Apr 2019, In: American Journal of Emergency Medicine. 37, 4, p. 706-709 4 p.

  Research output: Contribution to journal › Article › peer-review
  8 Scopus citations

• Variation in the care of septic shock: The impact of patient and hospital characteristics

  Lagu, T., Rothberg, M. B., Nathanson, B. H., Pekow, P. S., Steingrub, J. S. & Lindenauer, P. K., Aug 2012, In: Journal of Critical Care. 27, 4, p. 329-336 8 p.

  Research output: Contribution to journal › Article › peer-review
  8 Scopus citations

• Variation in the Color Doppler Area of a Regurgitant Jet with Changes in the Absolute Chamber Pressure: An In Vitro Study

  Aragam, J. R., Flachskampf, F. A., Weyman, A. E. & Thomas, J. D., 1992, In: Journal of the American Society of Echocardiography. 5, 4, p. 421-426 6 p.

  Research output: Contribution to journal › Article › peer-review
  2 Scopus citations

• Variation in the effectiveness of collaborative care for depression: Does it matter where you get your care?

  Unützer, J., Carlo, A. C., Arao, R., Vredevoogd, M., Fortney, J., Powers, D. & Russo, J., Nov 2020, In: Health Affairs. 39, 11, p. 1943-1950 8 p.

  Research output: Contribution to journal › Article › peer-review
  10 Scopus citations

• Variation in the frequency and type of sperm chromosomal abnormalities among normal men

  Martin, R. H., Rademaker, A. W., Hildebrand, K., Long-Simpson, L., Peterson, D. & Yamamoto, J., Oct 1 1987, In: Human Genetics. 77, 2, p. 108-114 7 p.

  Research output: Contribution to journal › Article › peer-review
  121 Scopus citations

• Variation in the heritability of educational attainment: An international meta-analysis

  Branigan, A. R., Mccallum, K. J. & Freese, J., Sep 2013, In: Social Forces. 92, 1, p. 109-140 32 p.

  Research output: Contribution to journal › Article › peer-review
  156 Scopus citations

• Variation in the human bicondylar angle

  Waxenbaum, E. B. & Stock, M. K., Jun 1 2016, In: American Journal of Physical Anthropology. 160, 2, p. 334-340 7 p.

  Research output: Contribution to journal › Article › peer-review
  5 Scopus citations

• Variation in the ICAM1-ICAM4-ICAM5 locus is associated with systemic lupus erythematosus susceptibility in multiple ancestries

  Kim, K., Brown, E. E., Choi, C. B., Alarcón-Riquelme, M. E., Kelly, J. A., Glenn, S. B., Ojwang, J. O., Adler, A., Lee, H. S., Boackle, S. A., Criswell, L. A., Alarcón, G. S., Edberg, J. C., Stevens, A. M., Jacob, C. O., Gilkeson, G. S., Kamen, D. L., Tsao, B. P., Anaya, J. M., Guthridge, J. M., & 30 othersNath, S. K., Richardson, B., Sawalha, A. H., Kang, Y. M., Shim, S. C., Suh, C. H., Lee, S. K., Kim, C. S., Merrill, J. T., Petri, M., Ramsey-Goldman, R., Vil, L. M., Niewold, T. B., Martin, J., Pons-Estel, B. A., Vyse, T. J., Freedman, B. I., Moser, K. L., Gaffney, P. M., Williams, A., Comeau, M., Reveille, J. D., James, J. A., Scofield, R. H., Langefeld, C. D., Kaufman, K. M., Harley, J. B., Kang, C., Kimberly, R. P. & Bae, S. C., Nov 2012, In: Annals of the Rheumatic Diseases. 71, 11, p. 1809-1814 6 p.

  Research output: Contribution to journal › Article › peer-review
  51 Scopus citations

• Variation in the management of infants hospitalized for bronchiolitis persists after the 2006 American Academy of Pediatrics bronchiolitis guidelines

  Florin, T. A., Byczkowski, T., Ruddy, R. M., Zorc, J. J., Test, M. & Shah, S. S., Oct 1 2014, In: Journal of Pediatrics. 165, 4, p. 786-792.e1

  Research output: Contribution to journal › Article › peer-review
  71 Scopus citations

• Variation in the nulliparous, term, singleton, vertex cesarean delivery rate

  Pasko, D. N., McGee, P., Grobman, W. A., Bailit, J. L., Reddy, U. M., Wapner, R. J., Varner, M. W., Thorp, J. M., Leveno, K. J., Caritis, S. N., Prasad, M., Saade, G., Sorokin, Y., Rouse, D. J., Blackwell, S. C. & Tolosa, J. E., Jun 1 2018, In: Obstetrics and gynecology. 131, 6, p. 1039-1048 10 p.

  Research output: Contribution to journal › Article › peer-review
  14 Scopus citations

• Variation in the number of meteoroid impacts on the Moon with lunar phase

  Dainty, A. M., Stein, S. & Toksöz, M. N., Jan 1 1975, In: Geophysical Research Letters. 2, 7, p. 273-276 4 p.

  Research output: Contribution to journal › Article › peer-review
  3 Scopus citations

• Variation in the perilipin gene (PLIN) affects glucose and lipid metabolism in non-Hispanic white women with and without polycystic ovary syndrome

  Kawai, T., Ng, M. C. Y., Hayes, M. G., Yoshiuchi, I., Tsuchiya, T., Robertson, H., Cox, N. J., Polonsky, K. S., Bell, G. I. & Ehrmann, D. A., Dec 2009, In: Diabetes Research and Clinical Practice. 86, 3, p. 186-192 7 p.

  Research output: Contribution to journal › Article › peer-review
  12 Scopus citations

• Variation in the postpartum hemorrhage rate in a clinical trial of oral misoprostol

  Goudar, S. S., Chakraborty, H., Edlavitch, S. A., Naik, V. A., Bellad, M. B., Patted, S. S., Patel, A., Moore, J., McClure, E. M., Hartwell, T., Moss, N., Derman, R. J., Kodkany, B. S. & Geller, S. E., 2008, In: Journal of Maternal-Fetal and Neonatal Medicine. 21, 8, p. 559-564 6 p.

  Research output: Contribution to journal › Article › peer-review
  13 Scopus citations

• Variation in the surfactant protein b gene (sftpb) contributes to newborn respiratory distress (rds): 167

  Hamvas, A., Wegner, D., Trusgnich, M., Liu, Y., Wissman, K., Madden, K. & Cole, F. S., Aug 2005, In: Pediatric research. 58, 2, p. 383 1 p.

  Research output: Contribution to journal › Article › peer-review

• Variation in the use of intracranial-pressure monitoring and mortality in critically ill children with meningitis in the United States

  Odetola, F. O., Tilford, J. M. & Davis, M. M., Jun 2006, In: Pediatrics. 117, 6, p. 1893-1900 8 p.

  Research output: Contribution to journal › Article › peer-review
  31 Scopus citations

• Variation in the use of red blood cell transfusions: A study of four common medical and surgical conditions

  Hasley, P. B., Lave, J. R., Hanusa, B. H., Arena, V. C., Ramsey, G., Kapoor, W. N. & Fine, M. J., Nov 1995, In: Medical care. 33, 11, p. 1145-1160 16 p.

  Research output: Contribution to journal › Article › peer-review
  63 Scopus citations

• Variation in tibial tuberosity lateralization and distance from the tibiofemoral joint line: An anatomic study

  Sojka, J. H., Everhart, J. S., Kirven, J. C., Beal, M. D. & Flanigan, D. C., Jun 2018, In: Knee. 25, 3, p. 367-373 7 p.

  Research output: Contribution to journal › Article › peer-review
  1 Scopus citations

• Variation in treatment of neonatal abstinence syndrome in US Children's Hospitals, 2004-2011

  Patrick, S. W., Kaplan, H. C., Passarella, M., Davis, M. M. & Lorch, S. A., Nov 5 2014, In: Journal of Perinatology. 34, 11, p. 867-872 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  85 Scopus citations

• Variation in tumor natural history contributes to racial disparities in breast cancer stage at diagnosis

  Batina, N. G., Trentham-Dietz, A., Gangnon, R. E., Sprague, B. L., Rosenberg, M. A., Stout, N. K., Fryback, D. G. & Alagoz, O., Apr 2013, In: Breast Cancer Research and Treatment. 138, 2, p. 519-528 10 p.

  Research output: Contribution to journal › Article › peer-review
  24 Scopus citations

• Variation in use of nephron-sparing surgery among children with renal tumors

  Chu, D. I., Lloyd, J. C., Balsara, Z. R., Wiener, J. S., Ross, S. S. & Routh, J. C., Aug 1 2014, In: Journal of Pediatric Urology. 10, 4, p. 724-729 6 p.

  Research output: Contribution to journal › Article › peer-review
  7 Scopus citations

• Variation in venues of slavery and freedom: Interpreting the late eighteenth-century cultural landscape of St. John, Danish West indies using an archaeological GIS

  Armstrong, D. V., Hauser, M., Knight, D. W. & Lenik, S., 2009, In: International Journal of Historical Archaeology. 13, 1, p. 94-111 18 p.

  Research output: Contribution to journal › Article › peer-review
  14 Scopus citations

• Variation in Young's modulus along the length of a rat vibrissa

  Quist, B. W., Faruqi, R. A. & Hartmann, M. J. Z., Nov 10 2011, In: Journal of Biomechanics. 44, 16, p. 2775-2781 7 p.

  Research output: Contribution to journal › Article › peer-review
  49 Scopus citations

• Variation of blood group antigen expression on vaginal cells and mucus in secretor and nonsecretor women

  Schaeffer, A. J., Navas, E. L., Venegas, M. F., Anderson, B. E., Kanerva, C., Chmiel, J. S. & Duncan, J. L., 1994, In: Journal of Urology. 152, 3, p. 859-864 6 p.

  Research output: Contribution to journal › Article › peer-review
  10 Scopus citations

• Variation of canonical height and equidistribution

  Demarco, L. & Mavraki, N. M., Apr 2020, In: American Journal of Mathematics. 142, 2, p. 443-473 31 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  2 Scopus citations

• Variation of corneal refractive index with hydration

  Kim, Y. L., Walsh, J. T., Goldstick, T. K. & Glucksberg, M. R., Mar 7 2004, In: Physics in Medicine and Biology. 49, 5, p. 859-868 10 p.

  Research output: Contribution to journal › Article › peer-review
  51 Scopus citations

• Variation of iStent Procedure Rates by State in Response to the COVID-19 Pandemic

  Vogel, K., Rojas, C. N., Tanna, A. P. & French, D. D., 2022, In: Clinical Ophthalmology. 16, p. 461-464 4 p.

  Research output: Contribution to journal › Comment/debate › peer-review

  Open Access

• Variation of muscle moment arms with elbow and forearm position

  Murray, W. M., Delp, S. L. & Buchanan, T. S., May 1995, In: Journal of Biomechanics. 28, 5, p. 513-515,517-525

  Research output: Contribution to journal › Article › peer-review
  290 Scopus citations

• Variation of Quality of Life Data Collection Across INTERMACS Sites

  Gupta, B. P., Grady, K. L., Fendler, T., Jones, P. G. & Spertus, J. A., May 1 2016, In: Journal of Cardiac Failure. 22, 5, p. 323-337 15 p.

  Research output: Contribution to journal › Article › peer-review
  10 Scopus citations

• Variation of taxane content in needles of Taxus x media cultivars with different growth characteristics

  Wang, X., Huang, Y., Mort, A. J., Zeng, Y., Tauer, C. G. & Cochran, K. D., 2006, In: Zeitschrift fur Naturforschung - Section C Journal of Biosciences. 61, 9-10, p. 619-624 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  12 Scopus citations

• Variation of tension in the long head of the biceps tendon as a function of limb position with simulated biceps contraction

  Gramstad, G. G., Sears, B. W. & Marra, G., Jan 2010, In: International Journal of Shoulder Surgery. 4, 1, p. 8-14 7 p.

  Research output: Contribution to journal › Article › peer-review
  6 Scopus citations

• Variation of the canonical height in a family of rational maps

  Ghioca, D. & Mavraki, N. M., Nov 28 2013, In: New York Journal of Mathematics. 19, p. 873-907 35 p.

  Research output: Contribution to journal › Article › peer-review
  4 Scopus citations

• Variation of the folding and dynamics of the Escherichia coli chromosome with growth conditions

  Hadizadeh Yazdi, N., Guet, C. C., Johnson, R. C. & Marko, J. F., Dec 2012, In: Molecular Microbiology. 86, 6, p. 1318-1333 16 p.

  Research output: Contribution to journal › Article › peer-review
  97 Scopus citations

• Variation of the intertrial interval in human classical conditioning

  Carrillo, M. C., Thompson, L. T., Gabrieli, J. D. E. & Disterhoft, J. F., Jun 1 1997, In: Psychobiology. 25, 2, p. 152-157 6 p.

  Research output: Contribution to journal › Article › peer-review
  19 Scopus citations

• Variation of the spin density at E_F with oxygen adsorption: Fe(110) vs O/Fe(110)

  Wu, R. & Freeman, A. J., 1993, In: Journal of Applied Physics. 73, 10, p. 6739-6741 3 p.

  Research output: Contribution to journal › Article › peer-review
  22 Scopus citations

• VARIATIONS AMONG ISOLATES OF EPSTEIN‐BARR VIRUS

  Dambaugh, T., Raab‐Traub, N., Heller, M., Beisel, C., Hummel, M., Cheung, A., Fennewald, S., King, W. & Kieff, E., Nov 1980, In: Annals of the New York Academy of Sciences. 354, 1, p. 309-325 17 p.

  Research output: Contribution to journal › Article › peer-review
  12 Scopus citations

• Variations in Acetylcholinesterase Activity within Human Cortical Pyramidal Neurons Across Age and Cognitive Trajectories

  Janeczek, M., Gefen, T., Samimi, M., Kim, G., Weintraub, S., Bigio, E., Rogalski, E., Mesulam, M. M. & Geula, C., Apr 1 2018, In: Cerebral cortex (New York, N.Y. : 1991). 28, 4, p. 1329-1337 9 p.

  Research output: Contribution to journal › Article › peer-review
  20 Scopus citations

• Variations in antibiotic prescribing of acute rhinosinusitis in united states ambulatory settings

  Smith, S. S., Kern, R. C., Chandra, R. K., Tan, B. K. & Evans, C. T., May 2013, In: Otolaryngology - Head and Neck Surgery (United States). 148, 5, p. 852-859 8 p.

  Research output: Contribution to journal › Article › peer-review
  36 Scopus citations

• Variations in Asthma Care by Race/Ethnicity among Children Enrolled in a State Medicaid Program

  Shields, A. E., Comstock, C. & Weiss, K. B., Mar 2004, In: Pediatrics. 113, 3 I, p. 496-504 9 p.

  Research output: Contribution to journal › Article › peer-review
  91 Scopus citations

• Variations in COVID-19 Hospital Mortality by Patient Race/Ethnicity and Hospital Type in Illinois

  Hua, M. J. & Feinglass, J., 2022, (Accepted/In press) In: Journal of Racial and Ethnic Health Disparities.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  1 Scopus citations

• Variations in Criteria and Practices for Heart Transplantation Listing Among Pediatric Transplant Cardiologists

  Patel, A., Michelson, K., Andrei, A. C., Pahl, E. & Gossett, J. G., Jan 15 2019, In: Pediatric cardiology. 40, 1, p. 101-109 9 p.

  Research output: Contribution to journal › Article › peer-review
  8 Scopus citations

• Variations in crowding and ambulance diversion in nine emergency departments

  Handel, D. A., Pines, J., Aronsky, D., Genes, N., Ginde, A. A., Hackman, J., Hilton, J. A., Hwang, U., Kamali, M., Powell, E., Sattarian, M. & Fu, R., Sep 2011, In: Academic Emergency Medicine. 18, 9, p. 941-946 6 p.

  Research output: Contribution to journal › Article › peer-review
  13 Scopus citations

• Variations in culture pH affect the cloning efficiency and differentiation of progenitor cells in ex vivo haemopoiesis

  Mcadams, T. A., Miller, W. M. & Papoutsakis, E. T., 1997, In: British Journal of Haematology. 97, 4, p. 889-895 7 p.

  Research output: Contribution to journal › Article › peer-review
  45 Scopus citations

• Variations in family composition

  Garfield, C., Apr 28 2009, Developmental-Behavioral Pediatrics: Expert Consult. Elsevier, p. 94-102 9 p.

  Research output: Chapter in Book/Report/Conference proceeding › Chapter