“…Fourteen studies reported a range from 2.1 to 13.0 antibiotic courses per 1000 resident days [ 8 , 30 , 40 , 56 , 70 , 73 , 80 , 90 , 93 , 95 , 107 , 109 , 111 , 112 ]. Finally, 15 studies reported a range of 38.2 to 148 DDD/1000 bed days [ 8 , 41 , 53 , 55 , 67 , 74 , 79 , 82 – 84 , 88 , 89 , 92 , 102 , 106 ]. Details are provided in S8 File .…”