Some thoughts on differences in black and white skin.
D044383:Black People; D006801:Humans; D012627:Sebaceous Glands / Q000502:physiology; D012871:Skin Diseases / Q000453:epidemiology; D012879:Skin Physiological Phenomena; D013545:Sweat Glands / Q000502:physiology; D013587:Syphilis / Q000453:epidemiology; D044465:White People