Author's response to reviews Title:Effects of long-term low-level radiation exposure after the Chernobyl catastrophe on immunoglobulins in children residing in contaminated areas: cohort and cross-sectional studies Authors:

Effects of long-term low-level radiation exposure after the Chernobyl catastrophe on immunoglobulins in children residing in contaminated areas: prospective and cross-sectional studies. We appreciate the thoughtful and thorough review provided by the reviewer Dr. DeWitt and Dr. Akiba. We have tried to carefully address each recommendation. We believe our manuscript is stronger as a result of the modifications outlined below. We thank the editorial staff and the reviewer for their contributions. Below we provided point-to-point responses (in purple ink type) to all comments. Modified text is highlighted in yellow in the revised manuscript. 1. The introduction is a bit lengthy. Much of the background material regarding immunoglobulin levels from people residing in nearby cities could be moved to the discussion and serve as a basis of comparison to the current study. Authors' response: We agree that the background section is fairly long; however, for each immunoglobulin, it gives a comprehensive overview of the studies that have been conducted after the Chernobyl accident. We believe that the background section will help the reader to understand the complexity of the