(HealthDay)—Rheumatoid arthritis (RA) is associated with restrictive and obstructive spirometry patterns, with the strongest associations seen for severe patterns, according
RA linked to restrictive, obstructive spirometry patterns
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Methotrexate and folic acid for RA: Managing side effects
However, methotrexate drains the body of folic acid, which may lead to folic acid deficiencies. The body needs folic acid