thymus lymphoid tissue
http://purl.obolibrary.org/obo/UBERON_0003483
http://purl.obolibrary.org/obo/CL_0000893
http://purl.obolibrary.org/obo/UBERON_0002370
http://purl.obolibrary.org/obo/UBERON_0000077
http://purl.obolibrary.org/obo/UBERON_0001744