1. Emphysema bulleur generalise avec infection;Drouet;F Fr Med Chir Thorac,1947
2. Fluid collection in emphysematous bullae;Bersack;AJR,1960
3. Infected emphysematous bullae; report of five cases;Rothstein;Am Rev Tuberc,1954
4. Pseudocisti aerea del polmone di aspetto ascessuale;Bossi;Gior di Clin Med,1949
5. Emphysematous bulla complicated by hemorrhage and infection;Weisel;Am Rev Tuberc,1950