a nonsignificant trendP > .05
There was a nonsignificant trend between the use of a collagen membrane and fewer macroscopic adhesions in almost all regions ( P > .05) especially in the retrosternal and defect regions ( Figure 3 ).
There was a nonsignificant trend between the use of a collagen membrane and fewer macroscopic adhesions in almost all regions ( P > .05) especially in the retrosternal and defect regions ( Figure 3 ).