Rapid responses are electronic letters to the editor. They enable our users to debate issues raised in articles published on thebmj.com. Although a selection of rapid responses will be included online and in print as readers' letters, their first appearance online means that they are published articles. If you need the url (web address) of an individual response, perhaps for citation purposes, simply click on the response headline and copy the url from the browser window. Letters are indexed in PubMed.
Taking blood pressure in women post surgery. Is there any evidence that to take someone's blood pressure on their mastectomy side is harmful? If not, where did this repeatedly quoted response originate from?
Overzealous invasive intraoperative excission of axillary lymph nodes must be reconsidered, since survival rates of patients with breast cancer seem exclusively dependent on tumour size.
Even tumours larger than 2 cm demonstrated 96% survival rates, irrespective of the number of positive lymph nodes. 
Crippling surgical lymphoedema creations could be considered bad medical practice nowadays.
 BMJ 2015;351:h4901 http://www.bmj.com/content/351/bmj.h4901