Abstract: In view of the current imbalance in the utilization of medical resources in the two-tier healthcare system, this study investigates the determination of referral thresholds for city ...
Each year, we combine the data from hundreds of thousands of nationwide speed tests with feedback from real users to identify ...
A 1978 Chicago snowstorm sparked an innovation: the Computerized Bulletin Board System (CBBS). Two hobbyists connected a ...
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