Data collection process, data items, and effect measures, data synthesis A custom-made data extraction form was developed, which included the following data items: general characteristics of the included studies (author and year, country, funding source, conflicts of interest, study design), population characteristics (sample number, demographics
(download XLSX Supplementary Data Additional file 2: Figure S1
Chesterfield Menthol Cool Classic The Chesterfield menthol cigarette is a timeless choice cooler than the standard range, lighter than the green variant, and perfectly balanced for all-day smoking
To make cigarette filters (what becomes the spent butts), manufacturers produce a plasticcellulose acetateby chemically altering wood pulp
He only slept four or five hours a day