“…48 Twenty-two were prospective studies, 14,16,17,[22][23][24][25][26][27][28]30,31,33,37,38,[40][41][42][46][47][48]51 nine were retrospective, [18][19][20]32,35,39,44,45,50 five were qualitative studies, 21,29,34,43,49 and two were descriptive studies. 15,36 Twenty-five studies were performed in the clinical environment, 14,15,[18][19][20][21]24,[26][27][28][29][30]…”