. 2019 Jul 10;7(7):e14090. doi: 10.2196/14090
©Ramin Ramezani, Wenhao Zhang, Zhuoer Xie, John Shen, David Elashoff, Pamela Roberts, Annette Stanton, Michelle Eslami, Neil Wenger, Majid Sarrafzadeh, Arash Naeim. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 10.07.2019.
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Figure 2.
Equations. MAD: mean absolute deviation.