. 2015 Mar 27;3(1):e12. doi: 10.2196/medinform.3709
©Selvaraj Rani Bhavani, Jagatheesan Senthilkumar, Arul Gnanaprakasam Chilambuchelvan, Dhanabalachandran Manjula, Ramasamy Krishnamoorthy, Arputharaj Kannan. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 27.03.2015.
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Figure 4.
Equations (1) and (2).