[DOI] [PubMed] [Google Scholar] 22.Schieber M., Chandel N.S
However, the device category codes referenced by the applicant were intentionally defined with anatomically specific descriptors from their inception ( e.g., C1748 (Endoscope, single-use ( i.e., disposable), upper GI, imaging/illumination device (insertable)) followed by C1747 (Endoscope, single use ( i.e., disposable), urinary tract, imaging/illumination device (insertable)), and C1601 (Endoscope, single-use ( i.e., disposable), pulmonary, imaging/illumination device (insertable)), as well as C1888 (Catheter, ablation, non-cardiac, endovascular (implantable)) followed by C1886 (Catheter, extravascular tissue ablation, any modality (insertable)))
Rotating injection sites is one of those recommendations that sounds minor but matters considerably over time
Future studies should prioritize large-scale, single-strain multicenter RCTs to validate long-term efficacy and safety, standardize detection protocols and experimental designs to reduce heterogeneity, and deepen mechanistic exploration of Clostridium /metabolitetarget cell interactions
