Use of sulphur hexafluoride microbubbles injection to identify the sentinel lymph node in breast cancer patients: initial experience in a UK breast unit. Issue 1 (December 2015) - Leaver, Alice; Lowes, Simon; Newton, Peter; Lunt, Linsley; Anand, Anuradha; Hutchinson, Linda; Athey, Sally; Potterton, Amanda; Sharma, Sheetal; Redman, Alan