id	keyword
inhs-148	elm disease
inhs-148	phloem necrosis
inhs-148	dutch elm
inhs-148	elms
inhs-148	ph.d
inhs-148	trees
inhs-148	illinois
inhs-148	assistant
inhs-148	symptoms
inhs-148	carter
inhs-148	year
inhs-148	elm phloem
inhs-148	urbana
inhs-148	survey
inhs-148	percent
inhs-148	block
inhs-148	population
inhs-148	area
inhs-148	spread
inhs-148	elm population
inhs-148	champaign
inhs-148	number
inhs-148	wilt