TY  - GEN
AU  - Hesham Mohamed Aziz
AU  - Frederic Borg Ananian , 
AU  - Noha Mohamed Hegazy , 
AU  - Yehia Ahmed Zakaria , 
TI  - Evaluation of respiratory system affection due to chronic exposure to portland cement dust / 
PY  - 1997///
CY  - Cairo : 
PB  - Hesham Mohamed Aziz , 
N1  - Thesis(Ph.D.) - Cairo University - Faculty of Medicine - Department of Industrial Medicine and Occupational Diseases
UR  - http://172.23.153.220/th.pdf
ER  -