P. B. Lawrence

Breast milk. Best source of nutrition for term and preterm infants.

P. B. Lawrence, Patricia Barry Lawrence, 1994, Pediatric clinics of North America.

Estimating Milk Intake of Hospitalized Preterm Infants Who Breastfeed

P. Meier, J. Engstrom, B. A. Fleming, 1996, Journal of human lactation : official journal of International Lactation Consultant Association.