| Articles | Research institutions | Province | N | Operation |
| Wang, 2001 [5] | Fuwai Hospital | Beijing | 369 | E | Meng, 2016 [6] | Shenzhen Children’s Hospital | Guangdong | 324 | T | Chang, 2007 [7] | Armed Police Corps Hospital of Shanxi | Shanxi | 519 | T | Lin, 2010 [8] | Anzhen Hospital | Beijing | 1192 | T | Wang, 2012 [9] | The First People’s Hospital of Huaihua | Hunan | 104 | T | Huang, 2014 [10] | Guangxi Zhuang Autonomous Region People’s Hospital | Guangxi | 120 | T | Song, 2008 [11] | Shijiazhuang First People’s Hospital | Hebei | 2645 | E and T | Zhang, 2015 [12] | Kunming Yan’an Hospital | Yunnan | 1000 | T | Zhang, 2010 [13] | Shandong Qufu People’s Hospital | Shandong | 384 | T | Gao, 2010 [14] | First Hospital of Hebei Medical University | Hebei | 168 | T | Zhang, 2008 [15] | Hunan Children’s Hospital | Hunan | 136 | T | Chen, 2010 [16] | Maoming People’s Hospital | Guangdong | 108 | T | Ma, 2012 [17] | People’s Liberation Army Hospital 474 | Xinjiang | 124 | T | Yin, 2010 [18] | Zhengzhou Institute of Cardiovascular Diseases | Henan | 121 | E and T | Xue, 2012 [19] | Beijing Airforce General Hospital | Beijing | 236 | T | Zhang, 2006 [20] | First Affiliated Hospital of Guangxi Medical University | Guangxi | 100 | T | Lin, 2010 [21] | Sixth Affiliated Hospital of Guangxi Medical University | Guangxi | 409 | T | Zhang, 2018 [22] | Guizhou Provincial People’s Hospital | Guizhou | 109 | E and T | Huang, 2016 [23] | Gaozhou People’s Hospital | Guangdong | 100 | T | Cheng, 2009 [24] | Bethune International Peace Hospital | Hebei | 200 | T | Zhou, 2006 [25] | Third Xiangya Hospital of Cental South University | Hunan | 616 | T | Li, 2011 [26] | Guizhou Provincial People’s Hospital | Guizhou | 165 | T | Yao, 2010 [27] | Yulin First People’s Hospital | Guangxi | 125 | T | He, 2010 [28] | First Affiliated Hospital of Tsinghua University | Beijing | 139 | E | Wang, 2003 [29] | Shanghai Children’s Medical Center | Shanghai | 153 | E |
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