More and more doctors, orthomolecular therapists, nutritionists and dieticians are discovering the convenience of taking blood samples themselves in their own practice by means of a simple finger prick. More than 350 doctors and therapists use the services of Hessels+Grob for examinations in blood, urine and saliva. Below you will find a part of our network of therapists in the Netherlands, arranged by province. They have given permission to be placed on our website and to contact us. If this is too far away from you please contact us: info@hesselsgrob.com.