1. The Vermont-Oxford Trials Network: Vermont low birthweight outcomes for 1990;Investigators of the Vermont-Oxford Trials Network Database Project;Pediatrics,1993
2. Sampling of Populations: Methods and Applications;Levy,1991
3. Single vs double entry in CAST;Reynolds-Haertle;Controlled Clin Trials,1992
4. Database use in neonatal intensive care units;Slagle;Pediatrics,1992
5. Very low birthweight outcomes of the National Institute of Child Health and Human Development Neonatal Network;Hack;Pediatrics,1991