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OTHER NON-CURRENT ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2024
OTHER NON-CURRENT ASSETS |
Schedule of other non-current assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | As at December 31,
​ |  | Notes |  | 2023 |  | 2024 |  | 2024
​ |  | ​ | ​ | RMB |  | RMB |  | US$
Deposit-long-term |  | i) | ​ | 3,760 |  | 1,722 |  | 236
Advance to hospitals-noncurrent | ​ | ii) | ​ | 1,325 | ​ | 960 | ​ | 132
Others |  | iii) | ​ | 6,341 |  | 3,185 |  | 436
​ |  | ​ | ​ | 11,426 |  | 5,867 |  | 804
| i) | Impairment losses of RMB 28 were reversed for the balances as at December 31, 2023, and RMB 659 (US$90) were provided for the balance as at December 31, 2024.
| ii) | Impairment losses of RMB 324 were reversed for the balances as at December 31, 2023, and RMB 77 (US$11) were provided for the balances as at December 31, 2024.
| iii) | Impairment losses of nil and RMB 143 (US$20) were reversed for the balances as at December 31, 2023 and 2024.

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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