Adivarekar, J. S., A. D. Chordia, H. H. Baviskar, P. V. Aher, and S. Gupta. “Patient Monitoring System Using GSM Technology”. International Journal Of Mathematics And Computer Research, Vol. 1, no. 02, Mar. 2013, pp. 73-78, http://ijmcr.in/index.php/ijmcr/article/view/206.