“…Twenty-two studies (n = 9783 patients) were identified ( Fig 1 , Table I ), 11 , 22 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 17 of which (n = 3940) were included in the frequency analysis summary ( Table II ). One of the studies excluded from frequency analysis did not report the frequency of hair loss and instead quantified the total hair count, hair density, and percentage of hair in the anagen or telogen phase.…”