0120-41570120-4157S0120-4157201700050005710.7705/biomedica.v37i1.3197ColombiaColombiaColombiaUSA0004201700042017375765200317167-90World Health Organization2002201315-3120121º404201375276-81199543378-832013Primera edición193-205200482157-9419651461-519699179-86199543603-9199651M283-8201317297-3062002501525-34200762408-1420011612602-72007552007231924-301992401129-342005200517307-221999197512189-98200553695-92000312995-300020042553200923479-50020163227-342016201426255-9201120514-22200541141-920001173-81199835361-75