Number | Author | Year | Method | Case group (n/N) | Control group (n/N) |
1 | Feng Jingqiao | 2016 | Immunofluorescence | 17/103 | 2/52 |
2 | Fan Ruyan | 2015 | Immunofluorescence | 154/367 | 39/403 |
3 | Zheng Jieli | 2016 | Immunofluorescence | 111/246 | 23/246 |
4 5 | Zou Yingxue Pan Junxiu | 2003 2015 | m-RT-PCR Immunofluorescence | 17/103 32/67 | 2/52 9/73 |