Over 675,000 lay people trained in cardiopulmonary resuscitation worldwide - The "World Restart a Heart (WRAH)" initiative 2018. - Böttiger BW; Lockey A; Aickin R; Bertaut T; Castren M; de Caen A; Censullo E; Escalante R; Gent L; Georgiou M; Kern KB; Khan AMS; et al. (Resuscitation, 2019)