[This corrects the article DOI: 10.2196/19034.].
©Von Ralph Dane Marquez Herbuela, Tomonori Karita, Thaddeus Marzo Carvajal, Howell Tsai Ho, John Michael Olea Lorena, Rachele Arce Regalado, Girly Dirilo Sobrepeña, Kozo Watanabe. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 22.04.2021.