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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Information Relating to Property, Plant and Equipment) (Details)
12 Months Ended
Dec. 31, 2019
Buildings [Member] | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 20‑50
Medical Equipment [Member] | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 5‑20
Electronic and Office Equipment [Member] | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 3‑5
Motor Vehicles [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful life P5Y
Leasehold Improvement and Building Improvement [Member] | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful life P5Y