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OTHER NON-CURRENT ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2022
OTHER NON-CURRENT ASSETS |
Schedule of other non-current assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | As at December 31,
​ |  | Notes |  | 2021 |  | 2022 |  | 2022
​ |  | ​ | ​ | RMB |  | RMB |  | US$
Deposit-long-term |  | i) | ​ | 6,232 |  | 6,249 |  | 906
Advance to hospitals-noncurrent | ​ | ii) | ​ | 1,104 | ​ | 1,002 | ​ | 145
Others |  | iii) | ​ | 13,440 |  | 7,842 |  | 1,137
​ |  | ​ | ​ | 20,776 |  | 15,093 |  | 2,188
| i) | Impairment losses of RMB 19 and RMB(2) were provided for the balances as at December 31, 2021 and 2022.
| ii) | Impairment losses of nil and RMB 102 (US$15) were provided for the balances as at December 31, 2021 and 2022.
| iii) | Impairment losses of RMB 361 and RMB 797 (US$116) were provided for the balances as at December 31, 2021 and 2022.

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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