title: Subfertility (Preface).
authors.affiliation: Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong. nghye@hku.hk
authors.forename: Ernest Hung Yu
authors.initials: EH
authors.lastname: Ng
authors.forename: Pak Chung
authors.initials: PC
authors.lastname: Ho
mesh_terms: D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007246:Infertility / Q000628:therapy*; D008297:Male