A 34-year-old woman who takes weekly methotrexate for rheumatoid arthritis presents to her GP with several painful crusty sores on her lips.
A 34-year-old woman who takes weekly methotrexate for rheumatoid arthritis presents to her GP with several painful crusty sores on her lips.
Which virus is implicated in the pathogenesis of this condition?
Select the SINGLE most appropriate option from the list below. Select ONE option only.
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