Gan RWC, Daniel M, Ridley M, Barry JG. Quality of questionnaires for the assessment of otitis media with effusion in children. Clin Otolaryngol. 2018 Apr;43(2):572-83. doi: 10.1111/coa.13026
Bayer AM, Danysh HE, Garvich M, Gonzalvez G, Checkley W, Alvarez M, Gilman RH. An unforgettable event: a qualitative study of the 1997-98 El Niño in northern Peru. Disasters. 2014 Apr;38(2):351-74. doi: 10.1111/disa.12046