TY  - RPRT
TI  - Current and never smokers: differentials in characteristics, knowledge and perceptions.
AU  - R M Youssef
AU  - S A Abou-Khatwa
AU  - H M Fouad
UR  - https://pubmed.ncbi.nlm.nih.gov/16450522/
ID  - 16450522
ER  -