Postnatal development of urea- and ammonia-excretion in urine of very-low-birth-weight infants small for gestational age / E. Boehm [et al.] Bibliogr. 31 tétel, Abstr. eng. In: Acta Paediatrica Hungarica. - ISSN 0231-441X. - 1991. 31. évf. 1. sz., p. 31-45.