title: In Reply to Ma et al.
authors.affiliation: Assistant professor, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland; elexis.c.mcbee.mil@mail.mil. Professor of medical education, School of Medicine, Flinders University, Adelaide, Australia. Professor of medicine, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
authors.forename: Elexis
authors.initials: E
authors.lastname: McBee
authors.forename: Lambert
authors.initials: L
authors.lastname: Schuwirth
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Durning