%0 Journal Article %T DNA accumulation on ventilation system filters in university buildings in Singapore %A Irvan Luhung %A Naomichi Yamamoto %A Siyu Xu %A Victor Wei-Chung Chang %A William W. Nazaroff %A Yan Wu %J Archive of "PLoS ONE". %D 2017 %R 10.1371/journal.pone.0186295 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5638523/