Sentences with phrase «lacking chemical tests»

8 In the 17th century, lacking chemical tests (and knowledge of disease transmission mechanisms), Italian physician and autopsist Antonio Valsalva sometimes tasted the fluids he encountered in cadavers in an effort to better characterize them.

Not exact matches

Although most chemicals are presumably safe, the lack of testing and ongoing bureaucratic delay imposed by existing legal requirements pose an unreasonable risk.

We also lack any basic chemical tests to understand whether a new treatment is delaying symptoms or slowing damage; instead patients must undergo frequent and lengthy testing.