21.   On Wednesday, Brown was at Hunkeler Eye Center in Overland Park to try the experimental procedure.

22.   One way to encourage the testing of experimental procedures for adults might be for insurance companies to institute a similar system, some academic doctors say.

23.   Researchers and patient advocates said the new initiatives could counteract a growing trend of doctors performing experimental procedures outside the confines of a clinical trial.

24.   She asked good questions about the experimental procedure.

25.   Since the industry has been forced to pay for experimental procedures offered outside of trials, the costs of that coverage has already been incorporated in their rate structure.

26.   Soon, lobbied by doctors, hospitals and patient groups, about a dozen states adopted their own mandates that the experimental procedure be covered.

27.   Some patients who want an experimental procedure might be assigned instead to a comparison group that received the best standard care.

28.   That finding contradicted the results of four other independent studies, which found no improvement in survival rates for patients who received the experimental procedure.

29.   The companies generally refuse to pay for experimental procedures offered outside trials.

30.   The early cloud of disrepute that settled on the field was somewhat dispelled after scientists learned the rigorous experimental procedures necessary to avoid contamination.