Enhancing nursing research with children and families using a developmental science perspective. Pre-term infants: care of pre-term infants - programs of research and their relationship to developmental science; developmental transition from gavage to oral feeding in the pre-term infant. Children with health problems: physical symptoms in children and adolescents; symptom experiences of children and adolescents with cancer; growing up with chronic illness - psychosocial adjustment of children and adolescents with cystic fibrosis; children's psychological responses to hospitalization; children living with chronic illness - an examination of their stressors, coping responses and health outcomes. Parents and families: parents of children with chronic health problems - programmes of nursing research and their relationship to developmental science; the sibling experience of living with childhood chronic illness and disability; maternal mental health and parenting in poverty.