“…Moreover, another 17 articles with incomplete data or the same participants were excluded. Ultimately, 62 publications from 1997 to 2022 were enrolled [ 2 , 13 , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] ]. 44 articles assessed the diagnostic value of NTx for bone metastasis of human cancers [ 2 , 3 , 13 , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [38] , [39] , [40] , [41] ], 20 records evaluated the efficacy of prognostic prediction of NTx in human cancers [ 13 , 15 , 38 , [42] , [43] , [44] , [45] , [46] , [47] , [48] , [49] , [50] ].…”