Breast screening atypia and subsequent development of cancer: protocol for an observational analysis of the Sloane database in England (Sloane atypia cohort study) oleh Abeer M Shaaban, Karoline Freeman, Sian Taylor-Phillips, Nisha Sharma, Olive Kearins, Cliona Kirwan, Karen Clements, Nigel Stallard, Alastair M Thompson, David Jenkinson, Hilary Stobart, Sarah Pinder, Elena Provenzano, Matthew G Wallis, Bridget Hilton, Joanne Dulson-Cox, Samantha McDonnell