“…Most frequent timings to begin intervention were 24-48 h after hospital admission (n=10) [22,30,31,40,41,45,46,49,53,57], after hospital discharge (n=5) [28,33,35,38,56], at the moment of hospital discharge (n=4) [18,19,36,47] and at hospital admission (n=3) [25,43,55]. [27,45,46,53], positive expiratory pressure therapy performed with noninvasive ventilation [22,54] or devices (n=3) [49], home diaries (n=2) [35,36], respiratory muscle training (n=1) [37], nutrition (n=1) [28] and whole body vibration (n=1) [30]. Only 16 (38.1%) of the included studies [18, 21-24, 26, 28, 29, 31, 34, 35, 38, 39, 44, 46, 56] used pulmonary rehabilitation as an intervention if the pulmonary rehabilitation definition is taken into account [4].…”