Dowlatshahi K, Daneshbod A, Mobarhan S
Lancet. 1978 Jan 21;1(8056):125-6. doi: 10.1016/s0140-6736(78)90421-x.
A simple mass-screening procedure for the early detection by brush cytology of oesophageal cancer in 280 adults in high-incidence villages of the Caspian Littoral is described. The presence of atypical cells in 7%, and the discovery of frank carcinoma in 3 symptom-free people encourages continuation of the project.