How many is too many? Risks spur effort to curb multiple births.
Mann
Lisa Barrett
LB
D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data; D012306:Risk