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   Atsushi KAWABATA et al, 2006, Journal of Veterinary Medical Science CrossRef
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   Shaukat A. Khan et al, 2008, American Journal of Physiology-Cell Physiology CrossRef
3. Bone Morphogenic Proteins Are Overexpressed in Malignant Melanoma and Promote Cell Invasion and Migration
   Tanja Rothhammer et al, 2005, Cancer Research CrossRef