Abo-Elkheir, O. I. and Hafez, M. R. (2018) “Characteristics, risk factors and histopathological types of bronchogenic carcinoma among cases presented to Chest Department, Al-Zahraa Hospital, Al-Azhar University”, International Journal Of Community Medicine And Public Health, 5(4), pp. 1281–1290. doi: 10.18203/2394-6040.ijcmph20181203.