title: 17-KETOSTEROIDS, PEPSIN AND GASTRIC ACIDITY IN VIRGIN YOUNG FEMALES.
mesh_terms: D015068:17-Ketosteroids; D035843:Biomedical Research; D004063:Digestion; D005745:Gastric Acidity Determination; D008598:Menstruation; D010060:Ovulation; D010434:Pepsin A; D013276:Stomach Ulcer; D013312:Stress, Physiological
chemical_list: D015068:17-Ketosteroids; D010434:Pepsin A
keywords: 17-KETOSTEROIDS; CLINICAL RESEARCH; GASTRIC ACIDITY DETERMINATION; MENSTRUATION; OVULATION; PEPSIN; STOMACH ULCER; STRESS