Which of the following are true regarding pulmonary changes after bone marrow transplantation?
a) Fungal infection is common in the neutropenic phase following transplantation
b) Patients are most susceptible to bacterial infection in the post-neutropenic phase of transplantation
c) Lung involvement is common in an acute graft versus host reaction
c)) Cytomegalovirus is the most common cause of pneumonia
e) Development of obliterative bronchiolitis following allogenic transplant is associated with a high mortality

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