| 3α-HSD | 3α-hydroxysteroid dehydrogenase |
| ACE2 | angiotensin-converting enzyme 2 |
| ALP | alkaline phosphatase |
| BSA | bovine serum albumin |
| CLEIA | chemiluminescent enzyme immunoassay |
| COVID-19 | coronavirus disease 2019 |
| CV | coefficient of variation |
| ELISA | enzyme-linked immunosorbent assay |
| LOD | limit of detection |
| LOQ | limit of quantitation |
| PCR | polymerase chain reaction |
| SARS-CoV-2 | severe acute respiratory syndrome coronavirus 2 |
| TBS | Tris-buffered saline |
| thio-NAD | thio-nicotinamide adenine dinucleotide |
| WHO | World Health Organization |
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