1、3.2Dear Dr/ Prof. James Joyce,On behalf of my co-authors, we thank you very much for giving us an opportunity to revise our manuscript. We greatly appreciate the editor and reviewers positive and constructive comments and suggestions on our manuscript entitled “Hydroxyapatite/Tetracalcium Phosphate/
2、Polyacrylic Acid Cement: Chemical-Physical Properties and Cytotoxicity” (ID: IEJ-12-00123).We have studied the reviewers comments carefully and made revision in the places marked in red in the paper. We have tried our best to revise our manuscript according to the comments. Attached please find the revised version, which we would like to submit for your kind consideration.We would like to express our gratitude again to you and reviewers for the comments on our paper. I am looking forward to hearing from you.Yours sincerely,Ling HuchongCorresponding author:Name: Qiao FengE-mail: