Mauskopf JA, Candrilli SD, Chevrou-Severac H, Ochoa JB. Immunonutrition for patients undergoing elective surgery for gastrointestinal cancer: impact on hospital costs. World J Surg Oncol. 2012 Jul 1;10:136.
Tuells A, Arana A, Perez-Gutthann S, García-Rodríguez LA. El Proyecto BIFAP. Inv Clin Farm. 2003;0:25-6.
Walker AW, Loughlin JE, Friedlander ER, Rothman KJ, Dreyer NA. Projections of asbestos-related disease, 1980-2009. J Occup Med. 1983 May;25(5):409-25.