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Open-top chambers, such as the one pictured above in a polar desert on Ellesmere Island, are commonl
A speculum used to hold the vagina open in order to visualize the cervix.
Closed urinary drainage system. Urine being measured after it leaves patient’s body via catheter.
Peritoneal dialysis setup.
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
Some plastic intake manifolds are equipped with a pressure relief valve that would open in the ...