1. Analgesia induced in vivo by enkephalin in rat;Belluzzi;Nature,1976
2. On the repetitive excess mixed anhydride method for the sequential synthesis of peptides. Synthesis of sequence 1–10 of human growth hormone;Beyerman,1972
3. Opiate-like action of Methionine-enkephalin in inhibiting morphine abstinence syndrome;Bhargava;Eur. J. Pharmac.,1977
4. Dose-dependent production and measurement of morphine tolerance and cross-tolerance;Carney;Pharmacologist,1973
5. A comparison of pharmacological effects produced by Leucine-enkephalin, Methionine-enkephalin, morphine, and ketocyclazocine;Crown,1976