This cigarette contains carcinogens.

This food may contain carcinogens.

Smoking is considered a cause of carcinogenesis.

This report includes all the details.

This report covers all the details.

Smoking increases the risk of carcinogenesis.

He quit smoking tobacco.

Smoking cigarettes is not good for your health.

It is said that this substance has a high carcinogenicity.

He has a habit of smoking tobacco every day.