Ultrasound-guided femoral approach for coronary angiography and interventions in the porcine model oleh Grigorios Tsigkas, Georgios Vasilagkos, Alexandros Tousis, Michail Theofanis, Anastasios Apostolos, Ioannis Spyridonidis, Leonidas Goudas, Georgios Karpetas, Athanasios Moulias, Christos S. Katsouras, Panagiotis Kitrou, Virginia Mplani, Anargyros N. Moulas, Dimitrios Karnabatidis, Periklis Davlouros