1.   In these times of cost containment, can hospitals afford to provide care that doctors say is futile?

2.   The excitement may be justified, doctors say, although wider use of the drug will reveal its true worth.

3.   One answer is smoking, doctors say.

4.   Side effects of many over-the-counter and prescription drugs may add to the strength-sapping effects of the illness, doctors say.

5.   The new strategy, which doctors say could undergo human testing within a year, involves temporarily programming these muscle cells not to divide.