61.   The cause was respiratory failure, said Prof. Arden Meltzer, a colleague at the University of Pittsburgh.

62.   The cause was respiratory failure, The Philadelphia Inquirer reported.

63.   The cause was acute respiratory failure, said Mort Viner, his longtime agent and friend.

64.   The cause was respiratory failure due to post-polio syndrome, his wife, Susan Woods Paine, said.

65.   The cause was respiratory failure, his family said.

66.   The cause was respiratory failure, said a hospital spokeswoman.

67.   The cause was respiratory failure, said her brother, Calvin Borror of Wichita, Kansas.

68.   The cause was respiratory failure, said his son, Scott.

69.   The cause also differs from such things as cardiac arrest or respiratory failure.

70.   The cause was respiratory failure after a long illness, according to his wife, Barbara Aronstein Black.