title: Tryptophan and tyrosine availability and oral contraceptives.
mesh_terms: D000328:Adult; D001682:Biological Availability; D001921:Brain / Q000378:metabolism; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003863:Depression / Q000139:chemically induced; D045166:Estradiol Congeners / Q000009:adverse effects*; D004997:Ethinyl Estradiol / Q000009:adverse effects*; D005260:Female; D006801:Humans; D014364:Tryptophan / Q000378:metabolism*; D014443:Tyrosine / Q000378:metabolism*
chemical_list: D003276:Contraceptives, Oral; D045166:Estradiol Congeners; D004997:Ethinyl Estradiol; D014443:Tyrosine; D014364:Tryptophan