0001-6002 0001-6002 S0001-60022017000200076 Costa Rica 00 06 2017 00 06 2017 59 2 76 78

1 2011 2 2006 2 507-38 3 2011 306-19 4 2012 166 1069-80 5 Ministerio de Salud de Costa Rica 6 1982 9-36 7 1982 9 27-35 8 1984 74 244-50 9 1984 12 489-500