<prompt> Irradiation can be used to sterilize all except :Bone graftSutureAificial tissue graftBronchoscope  <response>: Bronchoscopes are sterilized by glutaraldehyde Cidex. Gamma rays are used for sterilization of pre-packed disposable items, sutures, IV cannulas, urinary catheter, contraceptive devices, bone or tissue grafts 