1. The diagnosis of melanotic and other pigmented lesions of the lips and oral mucosa;Birt;J Otolaryngol,1978
2. Pigmentary disturbances due to drugs;Moller;Acta Derm Venereol,1966
3. Drug- and heavy metal-induced hyperpigmentation;Granstein;J Am Acad Dermatol,1981
4. Gingival pigmentation associated with antimalarial drugs;Manor;Isr J Dent Med,1981
5. Chloroquine-induced pigmentation;Levy;S Afr Med J,1981