Mitacek, EJ; Brunnemann, KD; Suttajit, M; Martin, N; Limsila, T; Ohshima, H; Caplan, LS (1999). "Exposure to N-nitroso compounds in a population of high liver cancer regions in Thailand: volatile nitrosamine (VNA) levels in Thai food". Food Chem Toxicol. 37 (4): 297–305. doi:10.1016/s0278-6915(99)00017-4. PMID10418946.
Mitacek, EJ; Brunnemann, KD; Suttajit, M; Martin, N; Limsila, T; Ohshima, H; Caplan, LS (1999). "Exposure to N-nitroso compounds in a population of high liver cancer regions in Thailand: volatile nitrosamine (VNA) levels in Thai food". Food Chem Toxicol. 37 (4): 297–305. doi:10.1016/s0278-6915(99)00017-4. PMID10418946.