Deletion of SILS gastric banding

Comment: whatever the merits of the current sourcing, a https://www.google.com/search?client=firefox-b-d&q=%22Single-incision+laparoscopic+surgery%22+%22gastric+banding%22+%22systematic+review%22 search for "Single-incision laparoscopic surgery" "gastric banding" "systematic review" returns several systematic review articles (the gold standard for ) comparing SILS with other surgical approaches to bariatric surgery. https://www.ncbi.nlm.nih.gov/pubmed/26471295 Liu et al 2015 compares SILS and conventional laparoscopy for adjustable gastric banding. https://www.sciencedirect.com/science/article/abs/pii/S1550728913003900 Moreno-Sanz 2015 compares SIL and conventional bariatric surgery, which includes gastric banding as one approach (another is gastric bypass). https://www.researchgate.net/publication/45152199_The_role_of_single-incision_laparoscopic_surgery_in_abdominal_and_pelvic_surgery_A_systematic_review Ahmed and Patel 2011 systematically review the literature on SILS in abdominal surgery more widely, gastric banding being one kind: they filtered 698 articles down to 102 that they analysed in detail. https://e-sciencecentral.org/articles/SC000028271 Kang et al 2018 review Single-Port Laparoscopic and Endoscopic Bariatric Treatments, gastric banding being one of "the most commonly performed surgical therapies" in the field. This says that the approach is notable and has been reliably evaluated repeatedly over several years now
Stance: keep
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