title: Percutaneous biopsy of mediastinal tumours under sonographic guidance.
authors.forename: M N
authors.initials: MN
authors.lastname: Sheppard
mesh_terms: D001707:Biopsy, Needle / Q000379:methods; D006801:Humans; D008479:Mediastinal Neoplasms / Q000473:pathology*; D008482:Mediastinum / Q000473:pathology*