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.
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).
Vallano A, Mendoza G, Rodríguez A, Rebordosa C. Seguridad de los analgesicos y de los antiinflamatorios. Farm Hosp. 2004;157:23-31.
Rothman KJ. Estimation of confidence limits for the cumulative probability of survival in life-table analysis. J Chronic Dis. 1978 Jan 1;31(8):557-60. doi: 10.1016/0021-9681(78)90043-7
Rothman KJ. A pictorial representation of confounding in epidemiologic studies. J Chronic Dis. 1975 Feb;28(2):101-8.
Rothman KJ, Keller AZ. The effect of joint exposure to alcohol and tobacco on risk of cancer of the mouth and pharynx. J Chronic Dis. 1972 Dec;25(12):711-6.