| Zhou, Linli: | performed experiments |
| Yang, Kun: | performed experiments |
| Xu, Mingang: | performed experiments |
| Andl, Thomas: | analysed data; wrote the paper |
| Millar, Sarah: | contributed reagents or other essential material; wrote the paper |
| Boyce, Steven: | contributed reagents or other essential material |
| Zhang, Yuhang: | Planned experiments; analysed data; wrote the paper |
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