@book{296860,
	author = {Roberts, Robert},
	title = {Current Opinion in Cardiology},
	publisher = {Lippincott Williams & Wilkins},
	year = {1997},
	address = {Houston, Texas},
	note = {Existencia: (1997: 12- 6) (1999: 14- 4) (2000: 15- 3)}
}