Mohan, S., K.S.P. Durairaj, V. Arjunan, B. Karthikeyan, and E. James Jabaseelan Samuel. 2010. “Hair Calcium and CardiovascularDisease”. Asian Journal of Chemistry 13 (4):1312-16. https://asianpubs.org/index.php/ajchem/article/view/22800.