Effect of oral administration of fumonisin B IND. 1 and aflatoxin B IND. 1 on urinary sphinganine and sphingosine - Direito, G. M.; Orsi, R. B; Pozzi, Claudia Rodrigues; Almeida, A. P.; Corrêa, Benedito (International IUPAC Symposium on Mycotoxins and Phycotoxins, 2000)