Taking calvarial grafts, either split in situ or splitting of the parietal bone flap ex vivo: tools and techniques. V: a 9650-case experience in craniofacial and maxillofacial surgery - Tessier,P.; Kawamoto,H.; Posnick,J.; Raulo,Y.; Tulasne,J.F.; Wolfe,S.A. (Plast Reconstr Surg, 2005)