Response to Comment on "The Complexity of Defining Postoperative Pneumonia Following Esophageal Cancer Surgery: A Spectrum of Lung Injury Rather Than a Simple Infective Complication? (ANNSURG-D21-00007)". Issue 6 (December 2021) - Raftery, Nicola B.; Murphy, Conor F.; Donohoe, Claire L.; O'Connell, Brian; King, Sinead; Ravi, Narayanasamy; Reynolds, John V.