id	keyword
inhs-172	lead
inhs-172	lead shot
inhs-172	lead poisoning
inhs-172	waterfowl
inhs-172	ducks
inhs-172	shot pellets
inhs-172	mallards
inhs-172	table
inhs-172	illinois
inhs-172	die
inhs-172	incidence
inhs-172	cent
inhs-172	lake
inhs-172	wildlife
inhs-172	species
inhs-172	gizzards
inhs-172	assistant
inhs-172	losses
inhs-172	bellrose
inhs-172	mortality
inhs-172	birds
inhs-172	ph.d
inhs-172	winter
inhs-172	history
inhs-172	survey
inhs-172	offs
inhs-172	hunting
inhs-172	areas
inhs-172	natural
inhs-172	flyway
inhs-172	letter
inhs-172	data
inhs-172	hunters
inhs-172	north
inhs-172	number
inhs-172	period