The radio legend told listeners on The Rush Limbaugh Show that he has been living under a "death sentence" since his terminal lung cancer diagnosis earlier this year.
Some 15 million U.S. adults have the condition according to the U.S. Centers for Disease Control and Prevention.
The so-called Schamroth window test helps to identify a rare type of deformity in the fingers and fingernails—known as "digital clubbing" or "finger clubbing"—which people with some heart or lung problems exhibit.
"It naturally raises the question as to whether and how much plastic we're inhaling," researcher Melanie Bergmann said.
"The myth of 'If I don't smoke, I won't get lung cancer' has been very damaging," said one expert.
Even nonsmokers will benefit from eating tomatoes.
The patient was just seven years old when he sniffed up the miniature traffic cone.
Among the stressors survivors were exposed to: starvation, overcrowding, infectious diseases, strenuous physical activity and physical and emotional abuse.
'We think this is one of the biggest survival benefits ever reported in a trial of an adult solid tumor,' said one expert.
The British soul musician lost a battle with lung cancer at age 70.