. 2018 Jan 31;20(1):e38. doi: 10.2196/jmir.8021
©Vania Martínez, Graciela Rojas, Pablo Martínez, Pedro Zitko, Matías Irarrázaval, Carolina Luttges, Ricardo Araya. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 31.01.2018.
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