Source:http://linkedlifedata.com/resource/umls/id/C0003121
MSH: An order of insects comprising the sucking lice, which are blood-sucking ectoparasites of mammals. Recognized families include: Echinphthiriidae, Haematopinidae, and Pediculidae. The latter contains the medically important genera affecting humans: PEDICULUS and PHTHIRUS.,NCI: A taxonomic order of wingless insects that are obligate ectoparasites of birds and mammals. Lice attach tightly to hair, fur, and feathers of the host organism and feed on blood, skin, and sebaceous secretions.