title: Evidence of the Existence of a Pre-Opsonin in Normal Serum, Convertible into Active Opsonin by the Addition of any Micro-Organism-Lowering and Ultimate Suppression of Opsonic Power of Normal Serum to all Organisms by the Addition of One.
authors.affiliation: The Thompson-Yates and Johnston Laboratories, University of Liverpool.
authors.forename: W
authors.initials: W
authors.lastname: Yorke
authors.forename: C H
authors.initials: CH
authors.lastname: Smith