title: Editor's comment on 'Response: The timing of monozygotic twinning: a pro-life challenge to conventional scientific wisdom'.
authors.forename: Martin H
authors.initials: MH
authors.lastname: Johnson
mesh_terms: D020554:Sperm Injections, Intracytoplasmic; D038522:Twinning, Monozygotic; D014430:Twins, Monozygotic