Boukamp P, Bleuel K, Popp S, Vormwald-Dogan V, Fusenig N E
Department of Carcinogenesis and Differentiation, German Cancer Research Center, Heidelberg, Germany.
J Cell Physiol. 1997 Nov;173(2):256-60. doi: 10.1002/(SICI)1097-4652(199711)173:2<256::AID-JCP31>3.0.CO;2-B.