0864-3466 0864-3466 S0864-34662019000200010 Perú Perú 00 06 2019 00 06 2019 45 2 1 World Health Organization 2016 2 2013 496 7446 7446 504-7 3 1999 53 35-70 4 2015 2 4 4 209-13 5 World Health Organization 2002 6 2013 61 3 3 1463-73 7 2008 18 1 1 19-25 8 Ministerio de Salud del Perú 2017