@book{1949,
	author = {Perrino, Albert C.(editor)},
	title = { A Practical Approach to Transesophageal Echocardiography},
	publisher = {Lippincott Williams & Wilkins},
	year = {2008.},
	address = {Philadelphia :},
	edition = {3rd ed.},
	url = {https://shop.lww.com/Practical-Approach-to-Transesophageal-Echocardiography/p/9781451175608}
}