Source:http://linkedlifedata.com/resource/umls/id/C0022962
CSP: order of herbivorous mammals (class Eutheria) resembling rodents (order Rodentia) but having two pairs of upper incisors one behind the other; it includes the rabbits, hares, and pikas.,MSH: An order of small mammals comprising two families, Ochotonidae (pikas) and Leporidae (RABBITS and HARES). Head and body length ranges from about 125 mm to 750 mm. Hares and rabbits have a short tail, and the pikas lack a tail. Rabbits are born furless and with both eyes and ears closed. HARES are born fully haired with eyes and ears open. All are vegetarians. (From Nowak, Walker's Mammals of the World, 5th ed, p539-41),NCI: The taxonomic order of mammals which include hares, rabbits and pikas.