-- https://www.faa.gov/data_research/research/med_humanfacs/oamtechreports/2000s/media/200618.pdf https://www.faa.gov/data_research/research/med_humanfacs/oam..

-- https://www.faa.gov/data_research/research/med_humanfacs/oamtechreports/2000s/media/200618.pdf https://www.faa.gov/data_research/research/med_humanfacs/oam... - page 6 tru 16 are interesting --