The EVOTION protocol was published in British Medical Journal Open as open access in February 2018
Dritsakis, Giorgos, Dimitris Kikidis, Nina Koloutsou, Louisa Murdin, Athanasios Bibas, Katherine Ploumidou, Ariane Laplante-Lévesque, Niels Henrik Pontoppidan, and Doris-Eva Bamiou. “Clinical Validation of a Public Health Policy Making Platform for Hearing Loss (EVOTION): Protocol for a Big Data Study.” BMJ Open 2018, no. 8 (February 15, 2018). http://bmjopen.bmj.com/content/8/2/e020978.long.