title: To butterfly or to needle: the pilot phase.
authors.forename: Lukas
authors.initials: L
authors.lastname: Hefler
authors.forename: Christoph
authors.initials: C
authors.lastname: Grimm
authors.forename: Sepp
authors.initials: S
authors.lastname: Leodolter
authors.forename: Clemens
authors.initials: C
authors.lastname: Tempfer
mesh_terms: D006801:Humans; D009339:Needles; D010146:Pain / Q000209:etiology; D018962:Phlebotomy / Q000009:adverse effects / Q000295:instrumentation*; D010865:Pilot Projects