| Abbreviation | Explanation |
| 1,25(OH)2D3 | calcitriol |
| 25(OH)D | 25-hydroxyvitamin D |
| ABTB1 | ankyrin repeat and BTB domain containing 1 |
| COVID-19 | coronavirus disease 2019 |
| CYPs | cytochromes P450 |
| FAT1 | FAT atypical cadherin 1 |
| GC | group-specific component |
| GWAS | genome-wide association studies |
| H-index | Hirsch index |
| HIPK3 | homeodomain interacting protein kinase 3 |
| LLR | log-likelihood ratio |
| LPAR1 | lysophosphatidic acid receptor 1 |
| LSI | latent semantic indexing |
| MI | mutual information |
| PVT1 | plasmacytoma variant translocation 1 |
| RNA | ribonucleic acid |
| RRI | relative research interest |
| SNPs | single nucleotide polymorphisms |
| TC | total citation |
| VDR | vitamin D receptor |
| vitDMGPs | vitamin D metabolism gene polymorphisms |
| WOS | Web of Science |