title: Letters.
authors.affiliation: Department of Physiotherapy, PULZ im Rieselfeld, Freiburg, Germany.
authors.forename: Georg
authors.initials: G
authors.lastname: Supp
mesh_terms: D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D059825:Physical Therapists / Q000193:education*; D026761:Physical Therapy Specialty / Q000193:education*; D013122:Spinal Diseases / Q000145:classification*