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Second-hand smoke prevails if ban not enforced AND ashtrays and signage not removed - http://t.co/3HwTFVIBzi
Second-hand smoke prevails if ban not enforced AND ashtrays and signage not removed - http://t.co/3HwTFVIBzi
Research: Ashtrays and signage as determinants of a smoke free legislation's success http://t.co/QKRuQTjwIZ
Research: Ashtrays and signage as determinants of a smoke free legislation's success http://t.co/QKRuQTjwIZ
Research: Ashtrays and signage as determinants of a smoke free legislation's success http://t.co/QKRuQTjwIZ