Inclusion Criteria:

- Patient who is deemed appropriate for treatment with Vidaza® by his or her clinician,
but who has not already started receiving Vidaza® treatment.

- Patient who is able to read and speak English.

- Patient who is willing and able to provide informed consent.

- Patient who agrees to complete patient assessment questionnaires.

Exclusion Criteria:

- Patients who are currently being treated with Vidaza®.

- Patients who are concurrently participating in a clinical trial.

- Patients unwilling or unable to complete the baseline and follow-up questionnaires.

- Patients who are deemed inappropriate for treatment with Vidaza®.