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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
Unplug it. Open it up. Check that all the internal plugs and cables are connected securely, not spontaneously disconnecting. Just to complicate matters, there are often some cables that normally aren't connected to anything.
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