https://www.selleckchem.com/pr....oducts/abbv-2222.htm
months after the intervention.Background This study will explore the effect and safety of CO2 laser (COL) for the management of patients with primary otosclerosis (PO). Methods The following electronic databases will be searched from inception to the present PUBMED, EMBASE, The Cochrane Library, Web of Science, PsycINFO, Cumulative Index to Nursing and Allied Health Literature, Allied and Complementary Medicine Database, Chinese Biomedical Literature Database, VIP, WANGFANG, and China National Knowledge Infrastructure. No language lim
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