title: Twinning: Double, double, toil and trouble?
authors.affiliation: Care Fertility, Brisbane, Queensland, Australia. fertility@ivfmed.com.au.
authors.forename: Clare
authors.initials: C
authors.lastname: Boothroyd
mesh_terms: D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D059285:Pregnancy, Twin; D056826:Single Embryo Transfer; D014429:Twins, Dizygotic