title: Macromolecular steroid drugs from testosterone or beta-estradiol and polypropylene glycol.
mesh_terms: D004355:Drug Stability; D004958:Estradiol; D011108:Polymers / Q000138:chemical synthesis; D011409:Propylene Glycols; D013256:Steroids / Q000032:analysis; D013739:Testosterone / Q000031:analogs & derivatives / Q000032:analysis
chemical_list: D011108:Polymers; D011409:Propylene Glycols; D013256:Steroids; D013739:Testosterone; D004958:Estradiol