title: Evolution of a round pneumonia.
authors.affiliation: Kaiser Permanente, San Diego Medical Center, Department of Emergency Medicine, San Diego, California.
authors.forename: Matthew
authors.initials: M
authors.lastname: Silver
authors.affiliation: Kaiser Permanente, San Diego Medical Center, Department of Emergency Medicine, San Diego, California.
authors.forename: Steven
authors.initials: S
authors.lastname: Kohler