Verification and validation of digital pathology (whole slide imaging) for primary histopathological diagnosis: All wales experience oleh M Babawale, A Gunavardhan, J Walker, T Corfield, P Huey, A Savage, A Bansal, M Atkinson, H Abdelsalam, E Raweily, A Christian, I Evangelou, D Thomas, J Shannon, E Youd, P Brumwell, J Harrison, I Thompson, M Rashid, G Leopold, A Finall, S Roberts, D Housa, P Nedeva, A Davies, D Fletcher, Muhammad Aslam