1. Cancer of the cervix. Diagnosis by sponge biopsy;Cinberg, B.L.;N. Y. Med,1951
2. Diagnosis of malignant lung tumors by aspiration biopsy and sputum examination;Craver, L.F.;Surgery,1940
3. Bronchial brushing in the diagnosis of peripheral lung lesions;Fennessy, J.J.;Amer. J. Roentgenol,1966
4. The Cytologic Diagnosis of Cancer;Graham, R.M.,1963
5. Bronchial abrasion microbiopsy instrument;MacLean, K.S.;J. Amer. med. Ass,1958