1. Peteiro J, Monserrat L, Castro Beiras A: Lábil subaortic obstruction during exercise stress echocardiography. Am J Cardiol. 1999, 84: 1119-23. 10.1016/S0002-9149(99)00517-2.
2. Lau K, Navarijo J, Stainback F: Pseudo-False-Positive Exercise Treadmill Testing. Tex Heart Inst J. 2001, 28: 308-11.
3. Cotrim C, João I, Fazendas P, Cordeiro P, Sequeira A, Henriksson I, Oliveira L, Carrageta M: Exercise induced ventricular gradient in a young patient with a positive treadmill test and normal coronary arteries. Rev Port Cardiol. 2002, 21: 331-5.
4. Cotrim C, Loureiro M, Simões O, Cordeiro P, Henriksson I, Vinhas H, Almeida A, Carrageta M: Intraventricular gradient during effort in a professional soccer player. Clinical significance. Rev Port Cardiol. 2005, 24: 1395-1401.
5. Almeida S, Cotrim C, Brandão L, Miranda R, Loureiro M, Simões O, Lopes L, Carrageta M: Exercise-Induced left ventricular outflow tract obstruction. A potential cause of symptoms in the elderly. Rev Port Cardiol. 2007, 26: 257-262.