Inclusion Criteria:

- Patients are 18 years of age or over.

- Patients present with chemotherapy-induced symptomatic anaemia.

- Patients suffer from solid tumours, malignant lymphomas or multiple myeloma and have
developed symptomatic anaemia due to their chemotherapy

- Patients can be recruited at any time (from the first to the final chemotherapy
cycle.)

- Patients would be suited for a course of treatment with RetacritTM (epoetin zeta)

Exclusion Criteria:

- Patients are not undergoing chemotherapy.

- Patients have already taken part in a RetacritTM study.

- The patients have contraindications to Retacrit(TM)

- Patients have hypersensitivity to the active principle or to one of the excipients.

- The patient presents erythroblastopenia, or 'pure red cell aplasia' (PRCA)

- Uncontrollable hypertension

- An adequate prophylaxis against thrombosis is not practicable