Task: Answer Verification
Input (English): Question: Is vitamin D deficiency in mycosis fungoides and Sézary syndrome patients similar to other cancer patients?
Answer: To our knowledge,this is the first study of vitamin D status in CTCL patients. Vitamin D deficiency was present in CTCL and other cancer patients compared with normal and historical controls. Correction of vitamin D deficiency and type of vitamin D supplementation used did not affect the overall clinical disease response.
Output (English): yes