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
Schmidt MA, Naleway AL, Esterberg EJ, DeBess EE, Biggs C, Hall AJ. Rapid, active surveillance for medically-attended acute gastroenteritis and norovirus infection in a managed care environment. Poster presented at the Annual HMO Research Network Conference Spring 2015; March 2015. Long Beach, CA. [abstract] J Patient Cent Res Rev. 2015 Apr 30; 2:140-1. doi: 10.17294/2330-0698.1195
Zhou X, Wang J, Zhang J, Copley-Merriman C, Torigoe Y, Reyes C, Seymour JF, Offner FC, Trneny M, Salles GA. Symptoms and toxicity of rituximab maintenance relative to observation following immunochemotherapy in patients with follicular lymphoma. Hematology. 2015 Apr;129(36). doi: 10.1179/1607845414Y.0000000179
Vallano A, Mendoza G, Rodríguez A, Rebordosa C. Seguridad de los analgesicos y de los antiinflamatorios. Farm Hosp. 2004;157:23-31.