to determine if fasting bile salt concentrations are an accurate indicator of pre-existing and methotrexate-induced liver disease in patients with psoriasis , the plasma concentrations of conjugated cholate , chenodeoxycholate and sulpholithocholate were measured in 18 patients being assessed for methotrexate therapy and 21 receiving long-term therapy .
C0033860
psoriasis
C0025677
methotrexate