Sick sinus syndrome
http://purl.bioontology.org/ontology/OMIM/MTHU048067
C0037052
http://purl.bioontology.org/ontology/OMIM/617173
http://purl.bioontology.org/ontology/OMIM/616201
MTHU048067
T047
http://purl.bioontology.org/ontology/OMIM/MTHU000110