Source:http://linkedlifedata.com/resource/umls/id/C0035804
CSP: rodents; the largest order of placental mammals (class Eutheria), all possessing one pair of chisel-like upper incisors for gnawing and flat-crowned premolars and molars for grinding; it includes the mice, rats, guinea pigs, squirrels, beavers, and many more.,MSH: A mammalian order which consists of 29 families and many genera.,NCI: The taxonomic order of mammals that includes mice, rats, guinea pigs, squirrels, beavers, and many others.