Epidemiological and reporting characteristics of predatory journal articles: protocol - Ahmadzai, Nadera; Alabousi, Mostafa; Avey, Marc T; Cobey, Kelly; Daniel, Raymond; Galipeau, James; Garritty, Chantelle; Ghannad, Mona; Hamel, Candyce; Hersi, Mona; Hutton, Brian; Isupov, Inga; et al. (Université d'Ottawa | University of Ottawa, 2016)