Lead and Calcium in Human Males Using Fingernails and Scalp Hair January 2013 in “ International Journal of Physical and Social Sciences ” James Ndiritu, Jane I. Murungi, Ruth Wanjau We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on indianjournals.com →