英国 Design degree certificate
MB(medullarybone)即为髓质骨图片来源rVWSSchweitzerM.H.etal
[2]YuH,etc.ThesubstantialhospitalizationburdenofinfluenzaincentralChina:surveillanceforsevere,acuterespiratoryinfection,andinfluenzaviruses,2010-2012.InfluenzaOtherRespirViruses.2014Jan;8(1):53-65.