June 2002 in “Dermatologic Surgery” Chinese scalps have fewer hair clusters than Caucasians, and transplanting 30 clusters per square centimeter creates a natural-looking hairline for bald Chinese individuals.
57 citations
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November 1987 in “Pediatric Dermatology” Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.
3 citations
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October 2015 in “International Journal of Dermatology” Normal hair density and diameter ratios were established to help diagnose adult hair loss.
24 citations
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September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
16 citations
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November 2013 in “European Journal of Dermatology” Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.