Relationship between nocturnal plasma oestrogen concentration and free plasma tryptophan in perimenopausal women.
D002940:Circadian Rhythm; D004967:Estrogens / Q000097:blood*; D005260:Female; D006801:Humans; D008593:Menopause; D014364:Tryptophan / Q000097:blood*
D004967:Estrogens; D014364:Tryptophan