Minimal Standard Terminology of Digestive Endoscopy Pregnancy Information Needs Ontology Source
http://purl.bioontology.org/ontology/STY/T019 http://www.semanticweb.org/luyu/ontologies/2021/3/pregnancy_information_needs_ontology#Congenital_abnormality LOOM
http://purl.bioontology.org/ontology/MSTDE/MT160007 http://www.semanticweb.org/luyu/ontologies/2021/3/pregnancy_information_needs_ontology#Heartburn LOOM