title: Testosterone is essential for cocaine sensitization in male rats.
authors.affiliation: Physioogy Department, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico 00936-5067.
authors.forename: Raissa
authors.initials: R
authors.lastname: Menéndez-Delmestre
authors.forename: Annabell C
authors.initials: AC
authors.lastname: Segarra