G. Fransen, C. van Marrewijk, S. Mujakovic, J. Muris, R. Laheij, M. Numans, N. de Wit, M. Samsom, J. Jansen, and J. Knottnerus. BMC medical research methodology, (January 2007)4304<m:linebreak></m:linebreak>LR: 20071115; PUBM: Electronic; DEP: 20070423; JID: 100968545; 0 (Histamine H2 Antagonists); 0 (Proton Pumps); RF: 24; 2007/02/14 received; 2007/04/23 accepted; 2007/04/23 aheadofprint; epublish;<m:linebreak></m:linebreak>Tipus d'estudis.
G. Norman, F. Sridhar, G. Guyatt, and S. Walter. Medical care, 39 (10):
1039-47(October 2001)4454<m:linebreak></m:linebreak>LR: 20041117; PUBM: Print; JID: 0230027; CIN: Med Care. 2001 Oct;39(10):1037-8. PMID: 11567166; ppublish;<m:linebreak></m:linebreak>MDCI.
M. Zilberberg, and A. Shorr. Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 16 (12):
1707-12(December 2010)6161<m:linebreak></m:linebreak>CI: (c) 2010 The Authors. Clinical Microbiology and Infection (c) 2010; JID: 9516420; ppublish;<m:linebreak></m:linebreak>Farmacoeconomia.