title: Commentary: the iceberg revisited.
authors.affiliation: Department of Epidemiology and Community Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5, Canada. jmlast@uottawa.ca.
authors.forename: John M
authors.initials: JM
authors.lastname: Last
mesh_terms: D058006:General Practice / Q000706:statistics & numerical data*; D006801:Humans