| Japanese Orthodontic Society | |
| Japanese Soceity for Oral & Maxillofacial Surgery | |
| Japanese Soceity of Jaw Deformities | |
| Japanese Society for Oral & Maxillofacial Radiology | | Elected Representative 2010- | | |
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| Japanese Society for Oral and Maxillofacial Radiology | 05/2000- | Member | | | 05/2018- | Fellow | | |
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| Japanese Society for Surgery of the Hand | 1997 - Present | Corresponding Member | | |
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| Japanese Society for the Temporomandibular Joint | | Elected Representative 2010-2012 | | |
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| Japanese Society of Stamatognathic Function | |
| Japanese Stomatological Society | |
| Jason Millman Promising Measurement Scholar Award Committee | |
| JEWISH LANGUAGES | January 1994 to present | Member/Book Reviewer | | Dr Levi Levi Joseph Abraham |
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| Jiang Jingguo foundation (Australia) | |
| Jianzhen Buddhist College, Yangzhou, China | 2006 to present | Honorary President | | |
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| Jiazhuang Buddhist Research Institute, Suzhou, China | 2002 to present | Deputy-director | | |
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| Jing-ji She-hui Ti-zhi Bi-jiao (Comparative Socio-Economic Systems) | 1998- | Editorial Board member | | |
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| Jioint Scientific Committee for Phase 1 Clinical Trials in HK | |
| Jockey Club Centre for Positive Ageing | 03/2012-present | Honorary Postdoctoral Fellow | | Dr Bai Bai Xue |
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| Jockey Club Early Psychosis project, University of Hong Kong,Reserch Sub-committee | |
| Jockey Club End-of-Life Community Care Project, The University of Hong Kong | 2022-2023 | Research Advisory | | |
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| Jockey Club Institute of Cancer Care | |
