title: Hormone implants and tachyphylaxis.
authors.forename: K
authors.initials: K
authors.lastname: Gangar
authors.forename: M I
authors.initials: MI
authors.lastname: Whitehead
mesh_terms: D015914:Estrogen Replacement Therapy; D004967:Estrogens / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D013618:Tachyphylaxis / Q000502:physiology*
chemical_list: D004967:Estrogens