title: Fertility treatment regulator steps up warning about multiple births.
authors.forename: Caroline
authors.initials: C
authors.lastname: White
mesh_terms: D005260:Female; D006801:Humans; D009099:Multiple Birth Offspring / Q000706:statistics & numerical data; D011247:Pregnancy; D011272:Pregnancy, Multiple; D027724:Reproductive Techniques, Assisted / Q000009:adverse effects*