En: International Travel & Health Insurance Journal. - Bristol, UK : Voyageur Publishing & Events Ltd., 2020- = ISSN 2055-1215. - 01/04/2020 Número 231 - abril 2020 , p. 12-14
En: International Travel & Health Insurance Journal. - Bristol, UK : Voyageur Publishing & Events Ltd., 2020- = ISSN 2055-1215. - 01/04/2020 Número 231 - abril 2020 , p. 16-17