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KRT19 immunostaining of an intact 13-week human fetal reproductive tract (AC121) grown for 4 weeks in an untreated ovariectomized female athymic mouse host. KRT19 was detected in simple columnar epithelia of the uterine tube (E), uterine corpus (A-B), endocervix (not illustrated), as well as in stratified epithelia of the presumed exocervix, vagina and vaginal plate (A, C & D) in basal through apical epithelial cells.
