https://www.cdc.gov/tobacco/data_statistics/fact_sheets/health_effects/tobacco_r...

		Obi_Juan_Kenobi on Nov 4, 2016 \| parent \| context \| favorite \| on: Smoking “causes hundreds of DNA changes” https://www.cdc.gov/tobacco/data_statistics/fact_sheets/heal... There's a good table of this about halfway down the page. Looks like cancer is the single largest cause, accounting for about 2/5ths of the deaths.

So a plurality. GP is splitting hairs then.