The name of the meeting is telling "...tobacco or Health" ...couldn't possibly expect both!
It started out as "World Conference on Smoking & Health", morphed into "...tobacco & Health" in 1990, and then into "...tobacco OR Health" in 1992.
1967 - World Conference on Smoking & Health, New York, NY, USA
1971 - 2nd World Conference on Smoking & Health, London, UK
1975 - 3rd World Conference on Smoking & Health, New York, NY, USA
1979 - 4th World Conference on Smoking & Health, Stockholm, Sweden
1983 - 5th World Conference on Smoking & Health, Winnipeg, MB, Canada
1987 - 6th World Conference on Smoking & Health, Tokyo, Japan
1990 - 7th World Conference on Tobacco & Health, Perth, WA, Australia
1992 - 8th World Conference on Tobacco OR Health, Buenos Aires, Argentina
1994 - 9th World Conference on Tobacco OR Health, Paris, France
1997 - 10th World Conference on Tobacco OR Health, Beijing, China
2000 - 11th World Conference on Tobacco OR Health, Chicago, Ill, USA
2003 - 12th World Conference on Tobacco OR Health, Helsinki, Finland
2006 - 13th World Conference on Tobacco OR Health, Washington D.C., USA
2009 - 14th World Conference on Tobacco OR Health, Mumbai, India
2012 - 15th World Conference on Tobacco OR Health, Singapore
Rampant Antismoking Signifies Grave Danger