title: Presence of endogenous opiate alkaloids.
authors.affiliation: Neuroscience Department, Roche Institute of Molecular Biology, Nutley, New Jersey 07110.
authors.forename: S
authors.initials: S
authors.lastname: Spector
authors.forename: E
authors.initials: E
authors.lastname: Marcum
authors.forename: F
authors.initials: F
authors.lastname: Haberman
mesh_terms: D000818:Animals; D003061:Codeine / Q000032:analysis*; D006801:Humans; D007118:Immunoassay; D009020:Morphine / Q000032:analysis*
chemical_list: D009020:Morphine; D003061:Codeine