1 Departments of General Surgery, The Newcastle Breast Centre, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK. Electronic address: ldarragh@doctors.org.uk.
2 Departments of Microbiology, The Newcastle Breast Centre, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK.
3 Departments of Plastic Surgery, The Newcastle Breast Centre, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK.