This publication describes 33 research projects supported by the federal Maternal and Child Health Bureau and completed in 1989, 1990, and 1991. It is the third edition in a series of collected abstracts of completed maternal and child health research projects. Each project abstract contains the name of the grantee, name and address of the investigator, project costs, statement of the problem, research questions addressed, study design and methods, study sample or population, findings, recommendations, and publications. The research projects focus on the following topics: school-age very low birthweight children, infant health and development, health and nutritional status of Mexican-American children, pesticide exposure and pregnancy outcome, chronically ill children's use of time out of school, mothers and deaf infants, intravenous antibiotic therapy in cystic fibrosis, trace metal interactions in lead-exposed children, closed head trauma in adolescence, child care arrangements and acute illnesses in preschoolers, financing maternity care, early intervention, infants of depressed adolescent mothers, technology-dependent children, coping with sudden infant death syndrome, paternal unemployment, grandfather influence, memory, standards for the evaluation of growth and nutritional status, follow-up care for premature infants, neonatal outcome and weight gain of Black adolescents, biotinidase deficiency in newborns, infant abuse and neglect, auditory testing, early intervention in failure to thrive, otitis media, uterine contractions in Black women, perinatal regionalization, breastfeeding, sickle cell anemia, listening partners, mothering in adolescence, and epilepsy in pregnancy. In addition to the abstracts, the publication contains an analytic section on products and highlights resulting from the research projects completed in 1987 through 1991 and a section listing all of the final reports of research projects received by the Maternal and Child Health Bureau from 1980 through 1991. (JDD)