https://www.selleckchem.com/pr....oducts/polyethylenim
To systematically review the current literature on treatment of third and fourth branchial pouch sinuses with endoscopic cauterization, including chemocauterization and electrocauterization, in comparison to surgical treatment. PubMed, Embase, and the Cochrane Library. We conducted a systematic search. Studies reporting original study data were included. After assessing the directness of evidence and risk of bias, studies with a low directness of evidence or a high risk of bias were excluded from analysis. Cumulative success ra
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