Keyphrases
Respiratory Infection
100%
Immunomodulatory Effect
100%
Vitamin D
100%
COVID-19
100%
Vitamin D Status
40%
Vitamin D Supplementation
40%
Risk Factors
20%
Viral Infection
20%
Pneumonia
20%
Infection-related Mortality
20%
Risk Reduction
20%
Respiratory Distress Syndrome
20%
Infectious Complications
20%
Immune Dysfunction
20%
Mortality Risk
20%
High-risk Population
20%
Complication Risk
20%
Protective Factors
20%
Infection Risk
20%
Infection Infection
20%
Low Vitamin D
20%
Nutritional Strategies
20%
Medicine and Dentistry
Respiratory Tract Infection
100%
Vitamin D
100%
COVID-19
100%
Supplementation
33%
High Risk Population
16%
Virus Infection
16%
Immune Disorder
16%
Infection Complication
16%
Respiratory Distress Syndrome
16%
Protective Factor
16%
Severe Acute Respiratory Syndrome Coronavirus 2
16%
Pharmacology, Toxicology and Pharmaceutical Science
Respiratory Tract Infection
100%
Vitamin D
100%
Virus Infection
16%
Respiratory Distress Syndrome
16%
Infection Complication
16%
SARS Coronavirus
16%