Systemic Pro-opiomelanocortin Expression Induces Melanogenic Differentiation and Inhibits Tumor Angiogenesis in Established Mouse Melanoma. - Guei-Sheung Liu; Han-En Tsai; Wen-Tsan Weng; Li-Feng Liu; Chien-Hui Weng; Ming-Ru Chuang; Hing-Chung Lam; Chieh-Shan Wu; Richard Tee; Zhi-Hong Wen; Shen-Long Howng; Ming-Hong Tai (Human Gene Therapy, 2011)