Altkofer, W; Braune, S; Ellendt, K; Kettl-Grömminger, M; Steiner, G (2005). "Migration of nitrosamines from rubber products--are balloons and condoms harmful to the human health?". Molecular nutrition & food research49 (3): 235–8. doi:10.1002/mnfr.200400050. பப்மெட்:15672455.
nih.gov
ncbi.nlm.nih.gov
Altkofer, W; Braune, S; Ellendt, K; Kettl-Grömminger, M; Steiner, G (2005). "Migration of nitrosamines from rubber products--are balloons and condoms harmful to the human health?". Molecular nutrition & food research49 (3): 235–8. doi:10.1002/mnfr.200400050. பப்மெட்:15672455.