Indica and sativa are the two main types of cannabis. Cannabis is one of the oldest crops known to mankind, with records of its cultivation dating back thousands of years. Today, it is widely accepted that marijuana has two different species: Cannabis indica and Cannabis sativa.ndica and sativa are the two main types of cannabis. Cannabis is one of the oldest crops known to mankind, with records of its cultivation dating back thousands of years. Today, it is widely accepted that marijuana has two different species: Cannabis indica and Cannabis sativa.
That would make medical errors the third-leading cause of death in America, behind heart disease, which is the first, and cancer, which is second. The new estimates were developed by John T. James, a toxicologist at NASA 's space center in Houston who runs an advocacy organization called Patient Safety America.
In 1999, an Institute of Medicine report calling preventable medical errors an âepidemicâ shocked the medical establishment and led to significant debate about what could be done. The IOM, based on one study, estimated deaths because of medical errors as high as 98,000 a year. Makaryâs research involves a more comprehensive analysis of four large studies, including ones by the Health and Human Services Departmentâs Office of the Inspector General and the Agency for Healthcare Research and Quality that took place between 2000 to 2008.