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Knudson A, Nicholls RS, Guerra AP, Sánchez R.Knudson A, et al. Among authors: nicholls rs.Biomedica. 2007 Dec;27(4):581-93.Biomedica. 2007.PMID: 18320125Spanish.
Knudson A, Mendoza NM, Nicholls RS.Knudson A, et al. Among authors: nicholls rs.Biomedica. 2004 Jun;24(2):123-4; 204-6.Biomedica. 2004.PMID: 15495591Spanish.No abstract available.