While male contraception has been studied before, no method met the stringent safety and effectiveness criteria that female methods do. It was also unclear whether men would use them.
关于男性避孕术已经早有研究，但还没发现一种比女性避孕术更安全有效的方法。而且，尚不能确定男性是否愿意使用这些方法。
Method A total of 1020 male elderly were investigated with questionaire of the Geriatric Depression Scale.
方法在全面身体检查同时，以老年抑郁量表和一般生活资料调查表对1020例老年男性进行调查。
MethodsUse male die-female die transition method to make individual resin nasal structure which also has with direction.
方法：使用阴模、阳模转换的方法制作出个性化，并具有方向性的树脂鼻模具。
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