Pollution status of legionella pneumophila in central air conditioning ventilation system in Guangzhou metro, 2006-2013
ZHANG Jiang, ZHANG Yin, WU Ji-bin, ZHANG Xin-qiang
S China J Prev Med . 2014, (5): 490 -492 .  DOI: 10.13217/j.scjpm.2014.0490

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