“…Twelve studies had a sample size <200 patients; 14,16,[20][21][22]27,28,[35][36][37][38][39] 10 studies had a sample size between 200 and 600 patients, 15,17,18,24,25,[29][30][31][32]34 and nine studies a sample size >600 patients. 3,11,13,19,23,26,29,33,40 Subjects were mostly inpatients, but in some studies discharged patients 11,14,15,21 or outpatients 21 were involved as well.…”