According to Freedom of Information requests submitted by the group ProCon.org, from 1997 to 2005 the Food and Drug Administration recorded 279 deaths to which marijuana contributed. 187 of these deaths were listed as being directly related to the use of the cannabis plant itself.Some doctors have also stated they believe the actual number of marijuana related deaths is probably much higher because marijuana is often dismissed as a cause of death due to it's reputation as being "harmless", due to the appearance of other substances in the deceased's toxicology reports, and routine omissions in coroners' reports.This assessment was substantiated by an estimate published on ProCon's website linking marijuana to as many as 296 preventable deaths in the year 1990 alone.