| Name | Contact method | Responses from the authors |
| First time of contact for additional possible relative research (7 December 2010) | ||
| Zhou Shufeng (National University of Singapore) | Mail & Email | None |
| Gao Yihuai (Massey University in New Zealand) | None | |
| Wang Chenwen (National Chung Hsing University in Taiwan) | Returned as “Unknown” (14 April 2011) | |
| Yuan Chunsu (University of Chicago) | None | |
| Ming Yongxie (Nanchuang University in China) | None | |
| Eva Guillamon (Campus Universitario “Duques de Soria” in Spain) | None | |
| Zhang Ying (Beijing Sport University in China) | None | |
| Masao Hattori (Toyama Medical and Pharmaceutical University in Japan) | None | |
| Lee KH (Ilyang Pharmaceutical Company in Korea) | None | |
| Lee SY (Oral Roberts University School of Medicine in USA) | None | |
| Yoshihisa Nakagawa (Tenri Hospital in Japan) | Mail & Email | None |
| Iris Benzie (Hong Kong Polytechnic University) | Email & Fax | None |
| Kagaya Y (Sakamoto Bio Farm in Japan) | None | |
| Second time of contact for further data extraction (10 March 2011) | ||
| Zhou Shufeng (National University of Singapore) | None | |
| Xu Huiheng (Divisions of Endocrinology and Metabolism, Taichung Veterans General Hospital, Department of Life Science, National Chung Hsing University, Taiwan) | None | |
| Third time of contact for additional possible relative research (24 March 2011) | ||
| Shanghai Medical University, Shanghai (Huiming Jin, Guoping Zhang, Xiang Cao, Ming Zhang) | Mail & Email | None |
| Xuzhou Institute of Cardiovascular Diseases (Jianjun Long, Bingqian Luo) | None | |
| Wakan Shoyaku Botany Institute, Tokyo, Japan (Masao Mori, Zhong Wang) | Returned as “insufficient information” (14 April 2011) | |
| Huiming Chen (No.1 Affiliated Hospital of Nanjing Medical University) | None | |
| Shiming Qian (Nanjin Chinese Traditional Medical College) | None | |
| Jin Lan (Institute of Human Nutrition and Department of Biochemistry, Qingdao Medical College, Qingdao University) | None | |
| Xihu Dai, Fuzhou General Hospital of Nanjing Military Region of the Peoples’ Liberation Army, Fuzhou | None | |
| Jinxian Ye, Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou | None | |
| Guoliang Chen, Shanghai Academy of Agricultural Sciences | None | |
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