1932: Garfield A
Seven studies [10, 12, 18, 27, 35, 37, 50] assessed whether the patient was a current, former, or never smoker (as separate categories), 15 [13, 15, 17, 21, 32, 40,41,42,43,44, 46, 47, 51, 52, 54] studies assessed whether the patient was a current smoker, 24 [8, 9, 11, 14, 16, 19, 20, 22,23,24,25,26, 28,29,30, 33, 34, 36, 38, 39, 45, 48, 49, 53] studies assessed whether the patient had a history of smoking (current and former)

Dolly Parton's 2014 Blue Smoke World Tour Dates: 6/8 Liverpool, England | Echo Arena 6/10 Belfast, Northern Ireland | Odyssey Arena 6/11 Dublin, Ireland | O2 Arena 6/12 Cork, Ireland | Live At The Marquee 6/14 Newcastle, England | Metro Radio Arena 6/15 Aberdeen, Scotland | GE Arena 6/17 Glasgow, Scotland | Hydro Arena 6/20 Leeds, England | First Direct Arena 6/21 Manchester, England | Phones 4U Arena 6/22 England, Birmingham, LG Arena 6/24 Cardiff, Wales | Motorpoint Arena 6/27 London, England | O2 Arena 7/2 Nottingham, England | Capital FM Arena 7/5 Cologne, Germany | Lanxess Arena 7/6 Berlin, Germany | O2 World 7/8 Copenhagen, Denmark | Forum 7/9 Oslo, Norway | Spektrum
Step 2: Light The use of a regular cigarette or pipe lighter will typically result in an uneven burn and poor draw, as the heat source is too small to sufficiently warm up the tobacco inside your stogie
Presumably the oil & gas industries didn't have this concern