“…The great majority of studies (45 out of 48) found a correlation between PSF and poststroke depression [ 13 , 18 , 20 – 22 , 24 – 26 , 29 , 31 , 33 , 35 – 38 , 40 , 41 , 43 , 44 , 46 – 50 , 52 , 53 , 57 – 59 , 61 – 65 , 67 – 69 , 72 , 75 , 77 , 80 – 84 ]. Hence, only three studies failed to observe this type of association [ 23 , 55 , 56 ].…”