Assertion: cautery | /r/ObjectUse | used as the occlusion method
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Source sentences:
text: First, it suggests that one semen analysis at 12 weeks should be sufficient to indicate whether or not a man could begin to rely on his vasectomy for contraception, and second, it is further evidence that 12 weeks is a reasonable endpoint when semen analysis is not available, if cautery is used as the occlusion method.