| COVID-19 |
1 |
1 |
| Vitamin |
0 |
0.99 |
| Vitamin D Deficiency |
0 |
0.98 |
| Liver |
0 |
0.47 |
| Pregnancy |
0 |
0.47 |
| Respiratory Tract Infections |
0 |
0.26 |
| Patient Safety |
0 |
0.12 |
| Immunization |
0 |
0.11 |
| Respiratory Tract |
0 |
0.11 |
| UK Site Content |
0 |
0.11 |
| Biologic Therapy |
0 |
0.1 |
| Healthcare and Medical Technology |
0 |
0.09 |
| Vaccines |
0 |
0.09 |
| Dentistry and Oral Health |
0 |
0.05 |
| Microbiome |
0 |
0.05 |
| Adverse Effects |
0 |
0.04 |
| Blood |
0 |
0.04 |
| Chronic Disease |
0 |
0.04 |
| Clinical Research |
0 |
0.04 |
| Concerns of Elderly |
0 |
0.04 |
| Diagnostic and Statistical Manual of Mental Disorders |
0 |
0.04 |
| Finger |
0 |
0.04 |
| Geriatrics |
0 |
0.04 |
| Hospital |
0 |
0.04 |
| Immunomodulator |
0 |
0.04 |
| Medical Innovations |
0 |
0.04 |
| Meta-Analysis |
0 |
0.04 |
| Microbiology |
0 |
0.04 |