 biomed literatur analysi journal articl collect radiat- cell-biologist the author's journal refer card 1965 1966 analyz three interest pattern total collect 1469 articl titl set ii subset concern special iii subset articl defin for pattern journal rank frequenc scatter diagram drawn pattern ii resembl pattern count citat basic journal count public select research pattern iii scatter it conclud access divers journal need research suppli idea divers read reflect adequ citat count indirect current content author current-awar purpos build card file gener 88 articl scatter diagram indic decreas scatter predict the 30 journal collect includ 80 titl rank pattern 