Small-scale, longer-term studies have been done and seem to demonstrate its safety.

No longer-term studies have been performed to assess the long-term effects on infants of levornogestrel in breast milk.

She also stressed the possibility that sexual side effects in female cyclists might be noticeable only in longer-term studies.

Warner-Lambert is also sponsoring another, longer-term study, using higher doses of the drug, that will be completed in January.

Moreover, other statements suggest that their position might be re-evaluated in the event of more evidence from longer-term studies.

Faced with that trend, the institutes have commissioned the first longer-term studies of saw palmetto's effectiveness and side effects.

Recently and roughly in temporal order below, much longer-term comparative historical studies of environmental degradation are found by sociologists.

Thus, there is a need for larger, longer-term studies to determine whether antibiotics can produce a modest reduction in heart attacks, Dr. Muhlestein's team said.

Diary techniques may be useful for longer-term studies provided they do not alter the respondent's habits.

The result, Dr. Streuwing's study, was intended to provide a quick snapshot of cancer risk while other, longer-term studies continued.