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Prion: toxic or infectious agent?
Rico A. Rico A. Med Hypotheses. 2003 Feb;60(2):209-14. doi: 10.1016/s0306-9877(02)00360-2. Med Hypotheses. 2003. PMID: 12606237
Universal life defense concept: global biology.
Rico A. Rico A. Arch Toxicol. 2004 Dec;78(12):669-70. doi: 10.1007/s00204-004-0595-7. Epub 2004 Sep 3. Arch Toxicol. 2004. PMID: 15349713 No abstract available.