Author's response to reviews Title:Non-invasive pulse wave analysis for monitoring the cardiovascular effects of CO2 pneumoperitoneum during laparoscopic cholecystectomy Authors: Péter Sárkány ( sarkanypeter@hotmail.com) Szabolcs Lengyel ( szabolcs.lengyel@med.unideb.hu) Réka Nemes ( reka.nemes.11@gmail.com) Livia Orosz ( orly@yahoo.com) Dénes Páll ( pall@belklinika.com) Csilla Molnár ( csmolnar@med.unideb.hu) Bela Fulesdi ( fulesdi@med.unideb.hu) Version:3Date:5 June 2014 Author's response to reviews: see over