1. www.cdc.gov/parasites/lice/head/
2. http://cks.nice.org.uk/head‐lice(Both last accessed October 2014.)
3. www.cdc.gov/parasites/lice/body/(last accessed October 2014).
4. www.cdc.gov/parasites/lice/pubic/
5. http://www.cdc.gov/mmwr/pdf/rr/rr5912.pdf