51.   But it stipulates that doctors who know they are at risk must have tests, tell their superiors if they are HIV-positive, and avoid invasive procedures.

52.   By reducing the need for some invasive procedures, the medical center has cut patient morbidity, study time and diagnostic costs and improved treatment planning, Villablanca said.

53.   Currently, doctors must remove specimens from the lung, a serious invasive procedure, to make a diagnosis.

54.   Doctors say Mother Teresa, beloved around the world for her service to the poor, is usually reluctant to undergo invasive procedures.

55.   Dr. Patricia Garcia, an assistant professor of obstetrics and gynecology at Northwestern University, is even more wary of routinely using an invasive procedure.

56.   Earlier, doctors had said Mother Teresa had to be persuaded to undergo the angiogram and angioplasty, because she disliked invasive procedures.

57.   Earlier, doctors had said Mother Teresa had to be persuaded to undergo the angiogram and angioplasty because she disliked invasive procedures.

58.   Hoff said her sister finally asked not to be put on a respirator again or subjected to more invasive procedures.

59.   If they find suspicious areas, they snip off tissue samples, usually during a more invasive procedure than the endoscopy.

60.   Now, an angiogram can perform that task, but it is an invasive surgical procedure.