Teh B, Olsen K, Black J, Cheng AC, Aboltins C, Bull K, et al. (2012). "Impact of swine influenza and quarantine measures on patients and households during the H1N1/09 pandemic". Scandinavian Journal of Infectious Diseases. 44 (4): 289–296. doi:10.3109/00365548.2011.631572. PMID22106922. S2CID24255689.
Teh B, Olsen K, Black J, Cheng AC, Aboltins C, Bull K, et al. (2012). "Impact of swine influenza and quarantine measures on patients and households during the H1N1/09 pandemic". Scandinavian Journal of Infectious Diseases. 44 (4): 289–296. doi:10.3109/00365548.2011.631572. PMID22106922. S2CID24255689.
Teh B, Olsen K, Black J, Cheng AC, Aboltins C, Bull K, et al. (2012). "Impact of swine influenza and quarantine measures on patients and households during the H1N1/09 pandemic". Scandinavian Journal of Infectious Diseases. 44 (4): 289–296. doi:10.3109/00365548.2011.631572. PMID22106922. S2CID24255689.