Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Zwillingsträchtigkeit-de#Sense
Twin pregnancy-en#Sense
Gémellité-fr#Sense
Twinning-en#Sense
Gestación gemelar-es#Sense
Gravidanza gemellare-it#Sense
Gemelaridad-es#Sense
Gemellarità-it#Sense
Gestation gémellaire-fr#Sense