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Bjork-Shiley Valve (B-S) : This is one of the earliest types of tilting disc valves introduced in early 70's. The earlier models like concavo-convex disc valves were withdrawn from market because of mechanical failure. The monostrut B-S valve was introduced in 1982. It has a pyrolitic carbon disc and cage made of Cobalt-chromium alloy. The disc opens to 70". Anticoagulation and endocarditis prophylaxis are mandatory. Mechanical failure is not reported. This valve is rarely used now.
How is the gastric mucosa protected from the acid pH of the stomach? The gastric epithelium is mucus secretory, i.e., it makes mucus. The mucus covers the stomach wall preventi
IN WHAT ASPECT ARE CNIDARIANS SIMILAR TO PROTOZOANS
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what is the problem that the theory of evolution and its rival theories try to solve?
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Oseltamivir (Tamiflu) This oral neuraminidase inhibitor, started within 36 hours of symptom onset, can decrease the severity and duration of symptoms caused by either influ
State the prevention of Campylobacteriosis Prevention: the various ways to prevent campylobacteriosis are: Wash hands before preparing foods. Wash hands immediatel
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