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Description
Patients visiting the general OPD were approached by the research assistant in the waiting area and were invited to participate in the survey
There is no completely safe form of nicotine use

There are also chemicals such as diacetyl, which has been linked to lung disease, and ultra-fine particles that are inhaled by e-cigarette users

Retrieved 2026-02-23.

Murthy in a report released in December 2016

Conclusion Understanding how cigarettes are made provides valuable insight into the complexity and precision of the manufacturing process
