Legionnaires' disease in a child with cancer.
D002675:Child, Preschool; D006801:Humans; D007165:Immunosuppression Therapy / Q000009:adverse effects; D007877:Legionnaires' Disease / Q000175:diagnosis / Q000209:etiology; D007945:Leukemia, Lymphoid / Q000150:complications*; D008297:Male