Foo, Chi Chung http://orcid.org/0000-0001-8849-6597
Ng, Ka Kin
Tsang, Julian
Wei, Rockson
Chow, Felix
Chan, Toi Yin
Lo, Oswens
Law, Wai Lun
Article History
Received: 7 February 2020
Accepted: 29 April 2020
First Online: 8 May 2020
Compliance with ethical standards
:
: The authors declare no conflict of interests.
: This retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Institutional review board of the University of Hong Kong/Hospital Authority Hong Kong West Cluster approved this study.
: For this type of study formal consent is not required.