title: When is the best age to have a child?
authors: Yongsheng
authors: Y
authors: Liu
mesh_terms: D000013:Congenital Abnormalities / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008423:Maternal Age; D010331:Paternal Age; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control*; D012306:Risk