Precision averaging.
Bourke
Denis L
DL
D000328:Adult; D006801:Humans; D008875:Middle Aged; D009294:Narcotics / Q000627:therapeutic use; D010146:Pain / Q000188:drug therapy / Q000503:physiopathology*; D010147:Pain Measurement / Q000379:methods*; D012107:Research Design; D013223:Statistics as Topic
D009294:Narcotics