While Sanger sequencing was highly accurate and less labor-intensive than its predecessors, it still required the use of radioactive reagents and manual sequence recording. In 1986, Leroy Hood’s lab at Caltech replaced the radiolabeled ddNTPs with fluorescently labeled nucleotides, using fluorophores that emitted different colors of light for each base. They were now able to run the products of all four reactions on the same gel and have a computer read the sequence by detecting the color of each fluorescent signal as fragments passed through a laser beam.
年末全国共有医疗卫生机构110.7万个，其中医院3.8万个，在医院中有公立医院1.2万个，民营医院2.6万个；基层医疗卫生机构105.5万个，其中乡镇卫生院3.3万个，社区卫生服务中心（站）3.8万个，门诊部（所）42.4万个，村卫生室56.0万个；专业公共卫生机构9231个（不含卫生监督所、中心），其中疾病预防控制中心3478个。卫生技术人员1340万人，其中执业医师和执业助理医师529万人，注册护士603万人。医疗卫生机构床位1009万张，其中医院799万张，乡镇卫生院144万张。全年总诊疗人次[81]105.8亿人次，出院人次[82]3.0亿人次。（见图24），推荐阅读PDF资料获取更多信息
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if new_state == "connected":