Manganese concentration in the hair of greying ("salt and pepper") men reconsidered.
D003300:Copper / Q000032:analysis; D006197:Hair / Q000032:analysis*; D006200:Hair Color; D006801:Humans; D008297:Male; D008345:Manganese / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D015032:Zinc / Q000032:analysis
D008345:Manganese; D003300:Copper; D015032:Zinc