title: Chemical determination of synthetic estrogens; basic data on the nitrosophenol reaction.
mesh_terms: D003271:Contraceptive Agents, Female; D045166:Estradiol Congeners; D004967:Estrogens / Q000032:analysis*; D005260:Female; D006801:Humans
chemical_list: D003271:Contraceptive Agents, Female; D045166:Estradiol Congeners; D004967:Estrogens
keywords: ESTROGENS/determination; NITROSOPHENOL REACTION