TY  - GEN
AU  - Kosterlitz, H.W
AU  - Collier, H.O.J
AU  - Villarreal, J.E
TI  - Agonist and antagonist actions of narcotic analgesic drugs
SN  - 0839107250
U1  - 615.783 
PY  - 1973///
CY  - Baltimore
PB  - University Park Press
ER  -