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Keystone Credit Recovery offers students two ways to complete credit recovery units: online or through correspondence. Students enrolling in online courses receive an email with instructions on how to access their courses.
Request (PDF) | Use of the keystone... | Traditional management strategies of advanced head and neck cancer in the elderly include palliation and radical resection with microsurgical reconstruction. The keystone flap approach is an alternate reconstructive technique with a range of benefits for the aging population. This publication presents a series of elderly patients with head and neck cancer who underwent resection and reconstruction using the keystone flap principles. The aim is to demonstrate the value of this reconstructive technique in the various anatomical regions of the head and neck.