Chiang, CL
Lee, SF
Lee, Venus WY
Yeung, Cynthia SY
Cheung, Steven KT
Poon, Michael CM
Foo, Dominic CC
Lo, SH
Lam, KO
Lee, Francis AS
Wong, Frank CS
Chan, Mark KH
Article History
Received: 5 December 2019
Accepted: 16 March 2020
First Online: 20 April 2020
Ethical consideration
:
: C.L. Chiang, S.F. Lee, V.W.Y. Lee, C.S.Y. Yeung, S.K.T. Cheung, M.C.M. Poon, D.C.C. Foo, S.H. Lo, K.O. Lam, F.A.S. Lee, F.C.S. Wong, and M.K.H. Chan declare that they have no competing interests.
: This retrospective study has been approved by the University of Hong Kong and Hospital Authority Hong Kong West Cluster (HKU/HA HKW IRB). This has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.