A thriller that will take you on a heart-pounding, pulse-racing rollercoaster ride. Perfect for fans of James Patterson and Lee Child. Erica Weisz, a new substitute teacher in the small town of Frosthaven, Florida has a dangerous secret. When two gunmen attack the school where she works, it becomes
Cholelithiasis and acoustic shadowing
โ Scribed by Michael Grossman
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 294 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0091-2751
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
The importance of the acoustic shadow in the ultrasound diagnosis of cholelithiasis has been stressed in recent reports. In vitro studies of gallstones indicate that the presence and magnitude of the acoustic shadow depend on a number of factors and suggest that a group of small stones may be demonstrable even though no acoustic shadow can be seen.
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