[1] Univ San Martin Porres, Chiclayo, Peru
[2] Univ Peruana Union, Sch Med, Lima, Peru
[3] Univ Privada Norbert Wiener, Ctr Invest Epidemiol Salud Global, Lima, Peru
[4] Univ Cient Sur, Fac Ciencias Salud, Lima, Peru
[5] Univ San Ignacio Loyola, Unidad Invest Generac & Sintesis Evidencias Salud, Lima, Peru
[6] Clin Avendano, Unidad Invest Multidisciplinaria, Lima, Peru