human 60 female 49 Humans 47 prematurity 43 Article 37 Female 37 male 35 newborn 34 Infant, Newborn 27 controlled study 27 adult 26 Male 23 child 21 major clinical study 21 infant 18 Adult 17 Infant 17 Child 15 clinical article 14 pregnancy 13 Infant, Premature 12 Pregnancy 12 gestational age 12 questionnaire 12 preschool child 11 Premature Birth 10 adolescent 10 cohort analysis 10 middle aged 10 Child, Preschool 9