Source:http://linkedlifedata.com/resource/umls/id/C0156404
NCI: Deviations from the normal process; e.g. delayed, difficult, profuse, scanty, unusual bleeding, etc.,NCI: A disorder characterized by irregular cycle or duration of menses.,NCI: Deviations from the normal process; e.g. delayed, difficult, profuse, scanty, unusual bleeding, etc.