Human Phenotype Ontology (HPO) Annotators & Other Tools BioPortal Annotator+ doc2hpo PhenCards Symptom Annotation Made Simple (SAMS) Navigators BioPortal Human Phenotype Ontology Ontology Lookup Service (OLS) Other Nomenclatures & Ontologies Gene Ontology knowledgebase (GO) Human Genome Variation Society (HGVS) HUGO Gene Nomenclature Committee (HGNC)