“…Seven studies did not include patients with EHD [18,19,23,25,26,36,40], while stable, isolated bone metastases were accepted in four studies [22,24,37]. Various other EHD was accepted in 9 studies of liver resection, as long as EHD was resectable or stable on therapy [20,21,27,28,29,31,32,35,42], and in four studies of local ablation [45][46][47][48] (table 3).…”