1. Activated platelets form protected zones of adhesion on fibrinogen and fibronectin-coated surfaces. Loike, John D.; Silverstein, R.; Cao, L.; Solomon, L.; Weitz, J.; Haber, E.; Matsueda, G. R.; Bernatowicz, M. S.; Silverstein, Samuel C. 1993 Articles Blood platelets--AggregationFibronectinsCytologyMicrobiologyBiochemistry