title: Frequent changes in policy risk confusion among health workers.
authors.forename: P
authors.initials: P
authors.lastname: Brettle
authors.forename: L
authors.initials: L
authors.lastname: Guinness
authors.forename: L
authors.initials: L
authors.lastname: Lim
authors.forename: S
authors.initials: S
authors.lastname: Robb
mesh_terms: D003150:Community Health Workers / Q000193:education*; D003906:Developing Countries; D017408:Guidelines as Topic; D006801:Humans; D000860:Hypoxia / Q000175:diagnosis*