Reference	Objective	Design	Evidence
Athanassa et al. [423]	Early switch to oral treatment in patients with moderate to severe community‐acquired pneumonia: a meta‐analysis	MA	1A+
Lee and Lindstrom [424]	Early switch to oral antibiotics and early discharge guidelines in the management of community‐acquired pneumonia	PCS	3B+
Marras et al. [425]	Efficacy of exclusively oral antibiotic therapy in patients hospitalized with non‐severe community‐acquired pneumonia: a retrospective study and meta‐analysis	RCS + MA	4B + 1B+
Nathan et al. [428]	In‐hospital observation after antibiotic switch in pneumonia: a national evaluation. Am J Med 2006; 119: 512–517. Ref ID: 603	PCS	3A+
Oosterheert et al. [429]	Effectiveness of early switch from intravenous to oral antibiotics in severe community‐acquired pneumonia: multicentre randomized trial. BMJ 2006; 333: 1193–1196. Ref ID: 32	RCT	2A+
Shindo et al. [427]	Implication of clinical pathway care for community‐acquired pneumonia in a community hospital: early switch from an intravenous beta‐lactam plus a macrolide to an oral respiratory fluoroquinolone	RCS	4A+
van der Eerden et al. [426]	Evaluation of an algorithm for switching from i.v. to p.o. therapy in clinical practice in patients with community‐acquired pneumonia	PCS	3A+