access to care, early intervention, geography, neonatal intensive care, rural/urban, Disability Evaluation, Female, Health Services Accessibility, Humans, Infant, Newborn, Infant, Newborn, Diseases, Infant, Premature, Intensive Care Units, Neonatal, Male, Nebraska, Population Density, Referral and Consultation, Risk Assessment, Risk Factors, Rural Population, Surveys and Questionnaires, Urban Population