LeféreDepartmentL.DepartmentDeprezDepartmentP.DepartmentEBSCO_AspVeterinary Record Journal of the British Veterinary AssociationDe Clercq, D. , van Loon, G. , Lefere, L. and Deprez, P. ( 2004 ) Ultrasound-guided biopsy as a diagnostic aid in three horses with a cranial mediastinal ...