title: Bifunctional photobinding of psoralen to single stranded nucleic acids.
mesh_terms: D002641:Chicago; D003281:Contraceptives, Postcoital / Q000008:administration & dosage / Q000494:pharmacology*; D004054:Diethylstilbestrol / Q000494:pharmacology; D004717:Endometrium / Q000187:drug effects*; D004967:Estrogens / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D012042:Registries
chemical_list: D003281:Contraceptives, Postcoital; D004967:Estrogens; D004054:Diethylstilbestrol