title: Commentary on current World Health Organisation definitions used in perinatal statistics.
mesh_terms: D001724:Birth Weight; D005865:Gestational Age; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D010500:Perinatology; D013223:Statistics as Topic; D009626:Terminology as Topic; D014944:World Health Organization