title: [The position of the needle in the vein. Usefulness of improving injection technic with small veins].
mesh_terms: D007275:Injections, Intravenous / Q000379:methods*; D009339:Needles; D014648:Varicose Veins / Q000628:therapy*
vernacular_title: Die Geometrie der Nadel in der Vene. Beitrag zur Verbesserung der Injektionstechnik kleiner Venen.