Title: Endoscopic resection combined with the Cryoballoon focal ablation system in the porcine
normal esophagus: A preclinical study
Version: 2 Date: 15 Feb 2021
Reviewer's report:
This  study describes about combination treatment with ER and CbFAS.
Histologically properly evaluated, it is a practical research content for future treatment.
However, the number of cases is too small, and the primary endpoint "success of the procedure"
is a subjective endpoint. How did you decide on the sample size?
There is no state in the manuscript regarding the extent of circumferential resected by EMR. I
don't think that stenosis occur in post EMR cases.
Title: Endoscopic resection combined with the Cryoballoon focal ablation system in the porcine
normal esophagus: A preclinical study
Version: 2 Date: 15 Feb 2021
Reviewer's report:
This  study describes about combination treatment with ER and CbFAS.
Histologically properly evaluated, it is a practical research content for future treatment.
However, the number of cases is too small, and the primary endpoint "success of the procedure"
is a subjective endpoint. How did you decide on the sample size?
There is no state in the manuscript regarding the extent of circumferential resected by EMR. I
don't think that stenosis occur in post EMR cases.
Please review this paper.
user
Title: Endoscopic resection combined with the Cryoballoon focal ablation system in the porcine
normal esophagus: A preclinical study
Version: 2 Date: 15 Feb 2021
Reviewer's report:
This  study describes about combination treatment with ER and CbFAS.
Histologically properly evaluated, it is a practical research content for future treatment.
However, the number of cases is too small, and the primary endpoint "success of the procedure"
is a subjective endpoint. How did you decide on the sample size?
There is no state in the manuscript regarding the extent of circumferential resected by EMR. I
don't think that stenosis occur in post EMR cases.
assistant