WHO – www.who.int/countries/cri/en/
WHO: indicatoren – apps.who.int/gho/data/node.cco.ki-CRI?lang=en
WHO: traditionele genezers in Costa Rica – apps.who.int/medicinedocs/en/d/Jh2943e/5.7.html
OMS: noticias – www.who.int/es/
Meer over Costa Rica – hlrnet.com/spp-cr.htm