After screening, the following articles were excluded: non-human data (n=4), non-English language articles (n=3), reviews without original cases (n=7), non-sarcoma/non-sarcomatous malignancies (n=26), lack of ALK-fusion (n=9), lack of ALK-fusion partners (n=22), and lack of crizotinib-based drug regimens (n=5). This evidence concerns the gene ALK and sarcoma.