(Q53537199)
Statements
Unbalanced randomization influences placebo response: scientific versus ethical issues around the use of placebo in migraine trials. (English)
P Tfelt-Hansen
1 reference
M Ferrari
1 reference
G Nappi
1 reference
H C Diener
1 reference
A J Dowson
1 October 1999
19
8
699-700
1 reference
1 reference
1 reference