Fix grammaticality of the sentence: Comparing this with the open human surgeries, patients can only return to their daily activities after 4 to 6 weeks.
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The patient is a patient who has a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of a history of