写真素材 - Troubleshooting novel coronavirus test kit. 2019 nCoV pcr patient samples, cotton swabs. Hands in gloves. RT-PCR detection of covid19 virus in patient samples. Work in special test lab.
Troubleshooting novel coronavirus test kit. 2019 nCoV pcr patient samples, cotton swabs. Hands in gloves. RT-PCR detection of covid19 virus in patient samples. Work in special test lab.