51.   This treatment has lead to many UN member countries calling for the UN troops withdrawal.

52.   They said there was a pressing need for new drugs because, for many patients, other treatments either have intolerable side effects or are ineffective.

53.   Two other patients who had no evidence of HIV in their semen prior to treatment subsequently had positive semen tests.

54.   Under the law, most alternative treatments do not have to be licensed by the Food and Drug Administration because technically they are not considered medicines.

55.   When treatment has failed, physicians declare brain death after administering certain tests.

56.   Whether such treatments actually have a long-term benefit, however, was unclear.

57.   While most of the procedures that doctors discuss in the press are accepted practice, some treatments have no scientific backing or are too new to have a history.

58.   Yet even this treatment has drawbacks.

59.   Even if treatment had to be repeated on average once a year, he said, it still would be worthwhile.

60.   Heart patients are not at risk from the thinners, because the treatment has different effects on heart patients and stroke sufferers, he said.