(Childhood leukemias) can be acute.Logical formLearned from2 sentences. Leukemia can be cancer of (blood cells).Logical formLearned from2 sentences. Exposure to formaldehyde may cause leukemia.Logical formLearned from2 sentences. Risks can be for (childhood leukemia).Logical formLearned from2 sentences. An excess risk may pertain to (leukemia deaths).Logical formLearned from2 sentences. (Leukemia deaths) can be among persons.Logical formLearned from2 sentences. A disease may pertain-to leukemia.Logical formLearned from2 sentences. An excess of (childhood leukemias) may be found.Logical formLearned from2 sentences. Chemotherapy may reach (leukemia cells).Logical formLearned from2 sentences. A leukemia can be documented.Logical formLearned from2 sentences. Treatment of acute leukemia may consist of a control of (bone marrow).Logical formLearned from2 sentences. Signs may pertain-to a leukemia.Logical formLearned from2 sentences. A leukemia may recur.Logical formLearned from2 sentences. Bmts may be used in a treatment of leukemia.Logical formLearned from2 sentences. A goal may pertain-to a leukemia.Logical formLearned from2 sentences.