Bairwa, B. K., Sagar, M., Gupta, R. C. and Gupta, M. (2019) “A comparative study of salivary and serum calcium and alkaline phosphatase in patients with osteoporosis”, International Journal of Research in Medical Sciences, 7(6), pp. 2412–2416. doi: 10.18203/2320-6012.ijrms20192539.