Title: Artificial Neural Network Models for Prediction of Cardiovascular Autonomic Dysfunction in General Chinese Population

1-The manuscript definitely needs to rewrite by native speaker again. 2-The structure of the manuscript is little bit messy, because the discussion section has the "Introduction" materials 3-The conclusion section has very strong statement as a conclusion statement that says " The performans of the ANN model (the manuscript just compared 5 ANN models) with high value predicted CA dyfunction". But, The manuscript did not compare other models. So, it is difficult to say that statement. 4-The manuscript gives 5 ANN models but does not explain any details about these models? 5-The abstract section says that the database has 2092 patients, but page 9 line18 says that there are 2077 patients for ANN models. The manuscript needs to recalculate statistical parameters again because of this patients information.