Source:http://linkedlifedata.com/resource/umls/id/C0005612
MSH: The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms.,NCI: In humans, the weight of a neonate measured within one hour after birth. The factors influencing the birth weight include but not limited to infant sex, racial and ethnic group, maternal size and health status, concurrent diseases, parity, and nutrition, pregnancy environment and conditions, e.g. altitude of geographic area.