Hierarchical Event Descriptors	Suggested Ontology for Pharmacogenomics	Source
http://www.loria.fr/~coulet/ontology/pato/version1.33/quality.owl#frequency	http://purl.org/hed/releases/2024-06-10/hed/HED_0012648	LOOM
http://www.loria.fr/~coulet/ontology/pato/version1.33/quality.owl#frequency	http://purl.org/hed/releases/2024-06-10/hed/HED_0012647	LOOM
http://www.ifomis.org/bfo/1.0/snap#Object	http://purl.org/hed/releases/2024-06-10/hed/HED_0012247	LOOM