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Clarke RB, Spence K, Anderson E, Howell A, Okano H, Potten CS.Clarke RB, et al. Among authors: howell a.Dev Biol. 2005 Jan 15;277(2):443-56. doi: 10.1016/j.ydbio.2004.07.044.Dev Biol. 2005.PMID: 15617686Free article.
Howell A, Clarke RB, Evans G, Bundred N, Cuzick J, Santen R, Allred C.Howell A, et al.Recent Results Cancer Res. 2007;174:151-67. doi: 10.1007/978-3-540-37696-5_13.Recent Results Cancer Res. 2007.PMID: 17302193Review.