A validated LC/MS/MS method for the quantification of pyrrole-2,3,5-tricarboxylic acid (PTCA), a eumelanin specific biomarker, in human skin punch biopsies

The validity and practicality of sun-reactive skin types I through VI

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Skin Melanin, Hemoglobin, and Light Scattering Properties can be Quantitatively Assessed In Vivo Using Diffuse Reflectance Spectroscopy

George Zonios, Julie L. Bykowski, Nikiforos Kollias · Journal of Investigative Dermatology · 2001 · 474 citations · Full text

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Pheomelanin as well as Eumelanin Is Present in Human Epidermis

A. J. Thody, Elisabeth M. Higgins, Kazumasa Wakamatsu et al. · Journal of Investigative Dermatology · 1991 · 306 citations

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Ethnic Variation in Melanin Content and Composition in Photoexposed and Photoprotected Human Skin

Simon Alaluf, Derek Atkins, Karen Barrett et al. · Pigment Cell Research · 2002 · 256 citations

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Liquid chromatography/tandem mass spectrometry methods for quantitation of mevalonic acid in human plasma and urine: method validation, demonstration of using a surrogate analyte, and demonstration of unacceptable matrix effect in spite of use of a stable isotope analog internal standard

Mohammed Jemal, Alan Schuster, Daisy B. Whigan · Rapid Communications in Mass Spectrometry · 2003 · 198 citations

Pharmacy, Biochemistry, Pharmaceutical Analysis +17