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
Ibañez A, Aguado J, Baez S, Huepe D, Lopez V, Ortega R, Sigman M, Mikulan E, Lischinsky L, Torrente F, Cetkovich M, Torralva T, Bekinschtein T, Manes F. From neural signatures of emotional modulation to social cognition: individual differences in healthy volunteers and psychiatric participants. Soc Cogn Affect Neur. 2014 Jul;9(7):939-50.
Knoll S, Jochum D, Talbird S. Comparative cost benefit analysis of two new Pneumococcal Conjugate Vaccines (PHiD-CV and PCV-13). Klin Padiatr. 2010 Jun 1;222(Suppl 1):S51-2.