title: Understanding preterm birth.
authors: Elizabeth
authors: E
authors: Lynch
mesh_terms: D019317:Evidence-Based Medicine; D005260:Female; D005865:Gestational Age; D006801:Humans; D007229:Infant Welfare / Q000706:statistics & numerical data*; D007231:Infant, Newborn; D008880:Midwifery; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D047928:Premature Birth / Q000453:epidemiology* / Q000517:prevention & control*; D012307:Risk Factors; D047929:Term Birth; D006113:United Kingdom