Comments on Ward et al., PAIN, 44 (1991) 151-155.
Nick
James B
JB
McNeil Consumer Products Co. Camp Hill Road Fort Washington, PA 19034, USA.
Mann
Katherine V
KV
Temple
Anthony R
AR
D000700:Analgesics; D002110:Caffeine; D006261:Headache / Q000188:drug therapy*; D006801:Humans
D000700:Analgesics; D002110:Caffeine