RT Journal Article SR Electronic T1 Natural American Spirit launches ‘Sky’, the brand’s first commercial organic cigarette with a charcoal filter JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 397 OP 399 DO 10.1136/tobaccocontrol-2021-056731 VO 32 IS 3 A1 Jennifer Pearson A1 Daniel P Giovenco A1 M Jane Lewis A1 Meghan Moran A1 Ollie Ganz YR 2023 UL http://tobaccocontrol.bmj.com/content/32/3/397.abstract AB