Article 4 Humans 4 Point-of-Care Systems human 4 point of care system 4 point of care testing 4 SARS-CoV-2 3 Severe acute respiratory syndrome coronavirus 2 3 controlled study 3 COVID-19 2 clinical article 2 coronavirus disease 2019 2 diagnosis 2 nonhuman 2 procedures 2 virus detection 2 1-(3-dimethylaminopropyl)-dimethylaminopropyl-ethylcarbodiimide hydrochloride 1 Aged 1 Antigens, Viral 1 Atherosclerosis 1 COVID-19 Serological Testing 1 CRU 1 Carbodiimides 1 EDC and NHS 1 Female 1 Healthy Volunteers 1 Immunoassay 1 Latex 1 Male 1 Methylamines 1