K. Schulz. JAMA : the journal of the American Medical Association, 274 (18):
1456-8(November 1995)6005<m:linebreak></m:linebreak>LR: 20071115; JID: 7501160; ppublish;<m:linebreak></m:linebreak>Aleatorització; Allocation concealment.
R. Melis, S. Teerenstra, M. Rikkert, und G. Borm. Evaluation & the health professions, 34 (2):
151-63(Juni 2011)6141<m:linebreak></m:linebreak>JID: 7805992; aheadofprint;<m:linebreak></m:linebreak>Aleatorització.
J. Efird. International journal of environmental research and public health, 8 (1):
15-20(Januar 2011)6695<m:linebreak></m:linebreak>LR: 20110725; JID: 101238455; OID: NLM: PMC3037057; 2010/11/22 received; 2010/12/19 revised; 2010/12/21 accepted; 2010/12/23 epublish; ppublish;<m:linebreak></m:linebreak>Aleatorització; SAS.
P. Fayers, und M. King. Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 18 (4):
401-2(Mai 2009)5130<m:linebreak></m:linebreak>JID: 9210257; 2009/02/09 received; 2009/02/09 accepted; 2009/03/01 aheadofprint; ppublish;.