Internal Hemipelvectomy for primary bone sarcomas using intraoperative patient specific instruments- the next step in limb salvage concept oleh Amit Benady, Yair Gortzak, Summer Sofer, Yuval Ran, Netta Rumack, Avital Elias, Ben Efrima, Eran Golden, Ortal Segal, Omri Merose, Amir Sternheim, Solomon Dadia