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¿Y teníais mucho porcentaje de falsos negativos en las PCR realizadas las primeras 48 horas? ¿Recomendáis repetir PCR si no mejora? 在前48小时进行的PCR中,您是否有很高的假阴性率? 如果PCR没有改善,是否建议重复PCR?
Created by
Doctor Xiao
, 17 Mar, 2020