UNT 发表于 2025-3-30 09:58:37
http://reply.papertrans.cn/32/3132/313169/313169_51.pngOsteoarthritis 发表于 2025-3-30 13:36:22
http://reply.papertrans.cn/32/3132/313169/313169_52.pngfodlder 发表于 2025-3-30 17:29:06
http://reply.papertrans.cn/32/3132/313169/313169_53.pngComplement 发表于 2025-3-30 20:56:20
http://reply.papertrans.cn/32/3132/313169/313169_54.pngoutskirts 发表于 2025-3-31 02:51:54
http://reply.papertrans.cn/32/3132/313169/313169_55.png违法事实 发表于 2025-3-31 07:24:06
Das Russisch-Sibirische Reisewerkbeen .=9,850 such patients, and for every one of them a medical record in the form of a file exists where the presence or absence of A is recorded. Dr. Q. could look through the whole (dust covered) set of files and count the occurrence of A in it. Suppose that he finds it 271 times; this would be the “frequency” he is looking for.彩色的蜡笔 发表于 2025-3-31 11:39:49
http://reply.papertrans.cn/32/3132/313169/313169_57.png粗糙 发表于 2025-3-31 15:38:26
http://reply.papertrans.cn/32/3132/313169/313169_58.pngPsychogenic 发表于 2025-3-31 20:25:24
http://reply.papertrans.cn/32/3132/313169/313169_59.png含糊其辞 发表于 2025-4-1 00:00:54
Clinical (Therapeutic) Trials,rested in the influence of factors that make the risk of disease, death etc. . when their own level increases. Hence as explained in Sect. 2.3 the main application of analytic epidemiology is prevention by lowering the level of risk factors. We might call this “hygiene” in a very broad and modern sense.