Fig. 1From: Trends in the incidence of oral cancer in Saudi Arabia from 1994 to 2015Consistency in percentage curves for oral cancer out of all cancer types from 1994 to 2015. The percentage curve for oral cancer out of all cancer types for males and females are correlated with overall increases and decreases over the period from 1994 to 2015, with the exception of years 1998 and 1999Back to article page