1. In 1976, Richardson'3 reapplied Swyer's formula to a population in California but, given a longer mean stay, revised the formula,1978
2. Outcome for babies declined admission to a regional neonatal intensive care unit;Simms, D.G.; Wynn, J.; Chiswick, M.L.;Arch Dis Child,1982
3. Trends in prevalence and survival of very low birth weight infants in England and Wales 1983-1987;Alberman, E.; Botting, B.;Arch Dis Child,1991
4. Cost of neonatal intensive care for very low birth weight infants;Sandhu, B.; Stevenson, R.C.; Cooke, R.W.I.; Pharouh, P.D.;Lancet,1986
5. Cost of neonatal care;Ryan, S.; Sics, A.; Congdon, P.;Arch Dis Child,1988