Emblem with a Maltese cross The<unk>  is a federation of European (mostly Protestant) chivalric<unk>  that share inheritance of the tradition of the medieval military Knights Hospitaller <unk> of Knights of the Hospital of<unk>  John of<unk> .
Alliance of the Orders of Saint John of Jerusalem
Ranks and insignia of St John Ambulance 
Commissioners in Lunacy
Outline of medicine
Victorian Order of Nurses
Against Medical Advice
Hampshire and Isle of Wight Air Ambulance
MindFreedom International