How any doctor can read the following FAA funded work:
'Exposure to aircraft bleed air contaminants among airline workers' - A Guide to Health Care Providers
http://www.aerotoxic.org/download/do...ocol031909.pdf
and then not understand how toxic oil fumes in a confined space make some people ill reminds me of this quote:
"It is difficult to get a man to understand something when his salary depends upon his not understanding it."
Upton Sinclair, 1936