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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
It depends on the tense of the whole piece. it's for a formal essay for a class like English or literature, past or present is fine, as long as it remains consistent. For a scientific paper, past is almost always the tense you should be using.
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