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3. Pulmonary teratoma-Report of a case with remarks on ovigenous tumors;Black, H. R.; Black, S. 0;Ann. Surg,1918
4. Cancerning the appearance of a dermoid cyst in thelung;Cloetta, A.;Arch.path. Anat.,20,42,1861
5. Teratoma of the lung;Collier, F.C.; Dowling, E.A.; Plott, D.; Schneider, H.;Arch. Path,1959