M. Brookhart, and S. Schneeweiss. The international journal of biostatistics, 3 (1):
Article 14(January 2007)5028<m:linebreak></m:linebreak>Variables instrumentals.
O. de Waroux, H. Maguire, and A. Moren. Euro surveillance : bulletin Européen sur les maladies transmissibles = European communicable disease bulletin, 17 (25):
20202(January 2012)6829<m:linebreak></m:linebreak>JID: 100887452; 0 (Vaccines); epublish;<m:linebreak></m:linebreak>Dissenys híbrids.
T. Itatsu, A. Nagahara, M. Hojo, A. Miyazaki, T. Murai, M. Nakajima, and S. Watanabe. Internal medicine (Tokyo, Japan), 50 (7):
713-7(January 2011)JID: 9204241; 0 (Serotonin Uptake Inhibitors); 2011/04/01 epublish; ppublish; Confusió absoluta entre cas-control i exposats-no exposats<br/><br/><br/>Tipus d'estudis.