RT Journal Article SR Electronic T1 Research allocations: the influence of material and social factors JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E619 OP E620 DO 10.1503/cmaj.109-3280 VO 182 IS 12 A1 Roger Collier YR 2010 UL http://www.cmaj.ca/content/182/12/E619.abstract