M. del Aguila, S. Vicente, L. del Castillo, and M. Sierra. Medicina clínica, 129 (8):
299-302(September 2007)4362<m:linebreak></m:linebreak>PUBM: Print; JID: 0376377; ppublish;<m:linebreak></m:linebreak>Protocol.
A. Rid, and D. Wendler. Kennedy Institute of Ethics journal, 21 (2):
141-79(June 2011)6275<m:linebreak></m:linebreak>JID: 9109135; ppublish; Consultar-lo a la web (40 pàgines!)<m:linebreak></m:linebreak>Relació benefici/risc.
I. Scott, P. Greenberg, P. Poole, and D. Campbell. Internal medicine journal, 36 (9):
587-99(September 2006)6624<m:linebreak></m:linebreak>LR: 20071115; JID: 101092952; ppublish;<m:linebreak></m:linebreak>Critical appraisal; Metaanàlisi; RCT; Introductori.
L. Novack, A. Jotkowitz, B. Knyazer, and V. Novack. Postgraduate medical journal, 82 (974):
817-22(December 2006)4497<m:linebreak></m:linebreak>PUBM: Print; JID: 0234135; ppublish;<m:linebreak></m:linebreak>Recursos/Organització; Necessitats.
D. Altman, S. Goodman, and S. Schroter. JAMA : the journal of the American Medical Association, 287 (21):
2817-20(June 2002)2784<m:linebreak></m:linebreak>Recursos/Organització; Publicació.
D. Moher, I. Simera, K. Schulz, J. Hoey, and D. Altman. BMC medicine, (January 2008)4674<m:linebreak></m:linebreak>LR: 20081120; JID: 101190723; OID: NLM: PMC2438435; 2008/05/08 received; 2008/06/16 accepted; 2008/06/16 aheadofprint; epublish;<m:linebreak></m:linebreak>Publicació.