| http://www.w3.org/ns/prov#value | - Nevertheless, the fact that collagenases have also been found in benign neoplastic cells via the in situ hybridization technique shows that the invasive mechanism must be more complex than previously suspected.9 The BM can be demonstrated by special stains such as PAS, although these are not specific.10 Thus, BM studies have tended to be carried out via immunohistochemical techniques instead, usin
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