Comparison between a dedicated stent positioning system and conventional stenting of aorto-ostial lesions: a prospective, multi-center, randomized controlled study.

"Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://cdt.amegroups.com/article/view/10.21037/cdt-22-542/coif). SN reports research grants to the institution from Boston Scientific, Abbott, Jiangsu Hengrui Pharmaceuticals, China Resources Sanjiu Medical & Pharmaceuticals, and East China Pharmaceuticals. Qing Liu reports that he is the chairman of the Beijing Advanced Medical Technologies, Ltd. Inc. He has no role in study design and conduct, data management, interpretation of the results, or decisions for publication. The other authors have no conflicts of interest to declare."

"Funding: This study was financed by research grant from Beijing Advanced Medical Technologies, Ltd. And partially funded by National Key R&D Program of China 12 ( No. 2020YFC2004800 ) and Beijing Nova Program ( No. Z201100006820087 )."

"Trial Registration Chinese Clinical Trial Registry (ChiCTR), Unique identifier: ChiCTR2100053869. URL: https://www.chictr.org.cn/showproj.html?proj=133280."