Gomes Pedro Lourenço, Barra Sérgio, Providência Rui, Leitão-Marques António
Cardiology Department, Coimbra's Hospital Centre and University, Coimbra, S Martinho do Bispo, Portugal.
BMJ Case Rep. 2012 Jun 28;2012:bcr0220125879. doi: 10.1136/bcr.02.2012.5879.