Longitudinal studies of plasma aldosterone, corticosterone, deoxycorticosterone, progesterone, 17-hydroxyprogesterone, cortisol, and cortisone determined simultaneously in mother and child at birth and during the early neonatal period: I. Spontaneous delivery - Sippell,W.G.; Becker,H.; Versmold,H.T.; Bidlingmaier,F.; Knorr,D. (J Clin Endocrinol Metabol, 1978)