| Assoication of Asian Studies | |
| Assoication of Chinese Social Sciences Professors in US | |
| Astrobiology Society of Hong Kong | |
| Astronomical Society of Australia | |
| Astronomical Society of Japan | |
| (*Astroviridae* viral family group - WHO led effort to prioritize diseases of epidemic and pandemic threat | 03/2023-present | Member of the Expert Group on Astroviruses | | |
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| At the Interface International Annual Conference on Evil and Human Wickedness | 03.2006 continuing | Member of Steering Group | | |
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| At-Risk Mental State Task Group on EASY Service Model | |
| Athanor. Semiotica, Filosofi, Arte, Letteratura | |
| Atlantic Council | |
| ATLS (Advanced trauma life support ) | |
| Atmosphere | 10/2021-05/2022 | Guest editor | | |
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| Audiological Society of Australia | 91 - present | Full Member | | | 09/78 - present | Member | | |
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| AULLA (Australasian Universities Language and Literature Association) | 08/1981-06/2008 | Member | | Professor Ashcroft Ashcroft William David |
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| Aust Dental Assn | 07/1995-07/2012; 2014-present | Member | | |
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| Austin Journal of Dentistry | 03/2014-present | Editorial Board Member | | |
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| Austin Oncology | | Editorial Board Membership | | Dr He He Bailiang Alex |
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| Australasian Association of Clinical Biochemists, Australia | 03/2017-present | Associate (Overseas) | | Dr Wong Wong Ho Yee |
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| Australasian Association of Philosophy | |
| Australasian College of Health Service Management | 10/2020 - present | Fellow | | | 10/2021-present | Fellow | | Dr Sit Sit Tin Yan Cecilia |
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