Supporting Data - How do nanoparticles enter solid tumours

Manually annotated TEM images of blood vessels in tumours. Labelled for nanoparticles in lumen, touching endothelial cells, inside endothelial cells, outside endothelial cells. Also, contains labels for endothelial cell, tight junctions, fenestrae, intraendothelial cell gaps, interendothelial cell gaps and vacuoles.