Here is a specialist who may be able to assist - or at least point you in the right direction:
Ki-Yan Mak, MBBS(HK), MD(HK), MHA, FRCPsych
Honorary Professor,
Department of Psychiatry, The University of Hong Kong.
Correspondence to : Professor Ki-Yan Mak, Department of Psychiatry, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong.
https://www.hkcfp.org.hk/Upload/HK_Practitioner/2005/hkp2005vol27mar/update_article_3.html