@book{1337,
	author = {Cheung, Elizabeth  and Cheng, Lilian},
	title = {Dozens of Hong Kong university laboratory staff in quarantine after environmental samples test positive for coronavirus /},
	url = {http://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=cddd95986efc792b067336c9125e5299}
}