Vitalis Study - Observational Study on the Quality of Life in Patients Under Treatment for B-Chronic Lymphocytic Leukemia (B-CLL) [clinicaltrials:NCT00344825]

Vitalis Study - Observational Study on the Quality of Life in Patients Under Treatment for B-Chronic Lymphocytic Leukemia (B-CLL) [clinicaltrials:NCT00344825]