Fig. 1From: An international, stepped wedge, cluster-randomized trial investigating the 0/1-h algorithm in suspected acute coronary syndrome in Asia: the rational of the DROP-Asian ACS studyParticipants. Six hospitals from Japan, and 3 hospitals from Malaysia join. Juntendo Urayasu Hospital and Shimada general hospital is in one cluster due to highly comparable geographical conditions (Chiba, Japan) and the expected relatively low number of enrollments (They can enroll patients during Monday to Friday, 9 a.m. to 4.p.m.)Back to article page