Fazel R, Froehlich JB, Williams DM, Saint S, Nallamothu BK (2007). “Clinical problem-solving. A sinister development--a 35-year-old woman presented to the emergency department with a 2-day history of progressive swelling and pain in her left leg, without antecedent trauma”. N. Engl. J. Med.357 (1): 53–9. doi:10.1056/NEJMcps061337. PMID17611208.
Fazel R, Froehlich JB, Williams DM, Saint S, Nallamothu BK (2007). “Clinical problem-solving. A sinister development--a 35-year-old woman presented to the emergency department with a 2-day history of progressive swelling and pain in her left leg, without antecedent trauma”. N. Engl. J. Med.357 (1): 53–9. doi:10.1056/NEJMcps061337. PMID17611208.