title: Closing comments: a retrospective perspective 4th International Workshop on Pneumocystis.
authors.affiliation: University of Cincinnati College of Medicine, Department of Internal Medicine, OH 45220, USA.
authors.forename: M T
authors.initials: MT
authors.lastname: Cushion
authors.forename: P D
authors.initials: PD
authors.lastname: Walzer
mesh_terms: D000818:Animals; D006801:Humans; D011010:Pneumocystis; D011020:Pneumonia, Pneumocystis