71.   But many people gradually walk further and further pain-free, as new blood vessels grow around their blocked arteries, Raabe said.

72.   Doctors watching the movement of the dye could spot a blocked artery and determine its severity.

73.   Doctors advised Ramos to reduce his activities after he underwent surgery in December to clear a blocked artery supplying blood to his brain.

74.   Doctors thread balloon-tipped catheters into a blocked artery and inflate the balloon to open it up.

75.   Dempsey had quadruple bypass surgery for a blocked artery last week, although the heat was not believed to a factor.

76.   Doctors say Vice President Cheney underwent angioplasty for partially blocked artery.

77.   Game show host Bob Barker is ready to head back home to California after undergoing surgery to clear a blocked artery in his neck.

78.   Game show host Bob Barker was released Saturday from George Washington University Hospital following a nine-day stay for treatment of a blocked artery.

79.   He has suffered four heart attacks over a quarter century, the last one in November, and was hospitalized in March to reopen a partially blocked artery.

80.   He had undergone an angioplasty in July to clear a blocked artery and had his left knee replaced in August.