EFFECT OF 17-BETA-ESTRADIOL ON THE HUMAN CERVIX UTERI IN PREGNANCY AT TERM. EFFECT OF MATURATION; HISTOLOGICAL AND HISTOCHEMICAL STUDY
ACCI'ON DEL 17-BETA-ESTRADIOL SOBRE EL CUELLO DEL 'UTERO HUMANO GESTANTE A T'ERMINO. EFECTO DE MADURACI'ON; ESTUDIO HISTOL'OGICO E HISTOQU'IMICO