Source:http://linkedlifedata.com/resource/umls/id/C0439231
NCI: One of the 12 divisions of a year as determined by a calendar. It corresponds to the unit of time of approximately to one cycle of the moon's phases, about 30 days or 4 weeks. (NCI),NCI: One of the 12 divisions of a year as determined by a calendar. It corresponds to the unit of time of approximately to one cycle of the moon's phases, about 30 days or 4 weeks.,HL7V3.0: <p>1 mo_j</p>