Headache & Pain
Jan. 20, 2023
Nearly 3,000 illustrations, including video clips of neurologic disorders.
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
Full spectrum of neurology in 1,200 comprehensive articles.
Listen to MedLink on the go with Audio versions of each article.
Abnormally increased pigmentation of the gums (“lead line” or "Burton line") in a child treated by a traditional Chinese medicine practitioner (Shenzhen, Guangdong, China) with a lead-based folk medicine. (Source: Ying XL, Markowitz M, Yan CH. Folk prescription for treating rhinitis as a rare cause of childhood lead poisoning: a case series. BMC Pediatr 2018;18:219. Creative Commons Attribution 4.0 International License, http://creativecommons.org/licenses/by/4.0.)