Raghunathan K, Layton JB, Ohnuma T, Shaw AD. Observational research using propensity scores. Adv Chronic Kidney Dis. 2016 Nov;23(6):367-72. doi: 10.1053/j.ackd.2016.11.010
Seeger JD, Quinn S, Earnest DL, Lembo A, Kuo B, Rivero E. The zelnorm epidemiologic study (ZEST): a cohort study evaluating incidence of abdominal and pelvic surgery related to tegaserod treatment. BMC Gastroenterol. 2012 Dec;12(1):171.
Mitra D, Hodgkins P, Yen L, Davis KL, Cohen RD. Association between oral 5-ASA adherence and health care utilization and costs among patients with active ulcerative colitis. BMC Gastroenterol. 2012 Sep 1;12(Sept):132.
Umscheid CA, Maguire MG, Pines JM, Everett WW, Baren JM, Townsend RR, Mines D, Szyld D, Gross R. Untreated hypertension and the emergency department: a chance to intervene? Acad Emerg Med. 2008 Jun;15(6):529-36. doi: 10.1111/j.1553-2712.2008.00132.x
Umscheid CA, Maguire MG, Pines JM, Everett WW, Baren JM, Townsend RR, Mines D, Szyld D, Gross R. The prevalence of and risk factors associated with untreated hypertension in ED patients. Poster presented at the 2007 Society for Academic Emergency Medicine Conference; May 2007. Chicago, IL. [abstract] Acad Emerg Med. 2007; 14(5 Suppl 1):S117.
Cole JA, Rothman KJ, Cabral HJ, Zhang Y, Farraye FA. Migraine, fibromyalgia, and depression among people with IBS: a prevalence study. BMC Gastroenterol. 2006 Sep 1;6(26).