Pediatric ECMO outcomes: comparison of centrifugal versus roller blood pumps using propensity score matching. - Barrett CS; Jaggers JJ; Cook EF; Graham DA; Yarlagadda VV; Teele SA; Almond CS; Bratton SL; Seeger JD; Dalton HJ; Rycus PT; Laussen PC; et al. (ASAIO journal (American Society for Artificial Internal Organs : 1992), 2013)