Terracini, B. (27 May 2004). "The limits of epidemiology and the Spanish Toxic Oil Syndrome". International Journal of Epidemiology. 33 (3): 443–444. doi:10.1093/ije/dyg010. PMID15166211.
Terracini, B. (27 May 2004). "The limits of epidemiology and the Spanish Toxic Oil Syndrome". International Journal of Epidemiology. 33 (3): 443–444. doi:10.1093/ije/dyg010. PMID15166211.