With so many variables influencing your health, from your diet and lifestyle to underlying conditions, it can be hard to ...

Objective To determine if methotrexate or folic acid prescription was associated with differential risk for COVID-19 diagnosis or mortality. Design Case–control analysis. Setting The population-based ...

Objective To explore if there is an increased cancer risk associated with folic acid supplements given orally. Design Systematic review and meta-analysis of controlled studies of folic acid ...