1. Ylppo (1916). Quoted by Renlov P and Siggaard-Andersen O: Late metabolic acidosis in premature infants-prevalence and significance. Acta Pediatr (Uppsala) 54:53, 1965
2. Rearden HS, Graham BD, Wilson JL, Baumann ML, Makepiece UT, Murrayama M: Studies of acid base equilibrium in premature infants. Pediatrics 6:753, 1950
3. Kildeberg P: Disturbance of hydrogen ion balance occurring in premature infants II: late metabolic acidosis. Acta Pediatr 53:57, 1964
4. Kildeberg P: Clinical Acid-Base Physiology: Studies in Neonates, Infants, and Young Children. Williams and Wilkins Co, Baltimore, 1968
5. Ranlov P, Siggaard-Andersen O: Late metabolic acidosis in premature infants, prevalence and significance. Acta Pediatr (Uppsala) 54:53, 1965