title: [The certificate of perinatal mortality and the registry connection].
authors.forename: O
authors.initials: O
authors.lastname: Ramis-Juan
mesh_terms: D001719:Birth Certificates; D003644:Death Certificates; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D012042:Registries / Q000592:standards*; D013030:Spain