Lauren Fischer and Paul Frank
If a reference citation in the text names a discussant specifically rather than the author(s), eg, “as noted by Easter,1” the following form is used:
1. Easter DW. In discussion of: Farley DR, Greenlee SM, Larson DR, Harrington JR. Double-blind, prospective, randomized study of warmed humidified carbon dioxide insufflation vs standard carbon dioxide for patients undergoing laparoscopic cholecystectomy. ...