Objective: To observe the needle-knife treatment of cervicogenic headache effects of nerve compression factor in cervical headache pathogenesis.

目的：观察针刀治疗颈源性头痛的效果，探讨皮神经卡压因素在颈源性头痛发病中的作用。

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Casecontrol study; Cervical cancer; Risk factor.

妇女；宫颈癌；危险因素。

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Osteoprosis can cause cervical intervertebral discs degeneration , so it may be an important factor for Cervical Spondylosis.

骨质疏松有可能引起颈椎间盘的退变，因而它可能是颈椎病发病的一个重要因素。

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According to the National Cancer Institute, oral contraceptives have been shown to increase the risk of cervical cancer, although human papillomavirus is the major risk factor for the disease.

CNN: Gaps found in young people's sex knowledge