LEI, Zhou et al. Interventions and Respiratory Specimen Screening of Close Contacts to Control an Outbreak of Pandemic Influenza A (H1N1) Virus in a Tour Group, China, 2009. OSIR Journal, [S.l.], v. 3, n. 2, p. 6-11, nov. 2016. ISSN 2651-1061. Available at: <http://www.osirjournal.net/index.php/osir/article/view/72>. Date accessed: 29 apr. 2024.