Fondell E, Balter O, Rothman KJ. Dietary intake and supplement use of vitamins C and E and upper respiratory tract infection. J Am Coll Nutr. 2011 Aug 1;30(4):248-58.
Garcia-Albeniz X, Martinez-Fernandez A, Gascon P. Combining targeted therapies. Target Oncol. 2007 Oct;2(4):241-52. doi: 10.1007/s11523-007-0062-5