title: Skin pigmentation and assortative mating in Sikhs.
mesh_terms: D000328:Adult; D001132:Arm; D004641:Emigration and Immigration; D005145:Face; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D008393:Marriage; D010858:Pigmentation; D044469:Racial Groups; D013053:Spectrophotometry; D006113:United Kingdom