Letter of apology.
Mayer
Thomas
T
Hamann
Gerhard
G
Brueckmann
Hartmut
H
D001488:Basilar Artery / Q000601:surgery*; D006801:Humans; D020766:Intracranial Embolism / Q000150:complications / Q000601:surgery*; D014656:Vascular Surgical Procedures / Q000295:instrumentation* / Q000379:methods*; D014715:Vertebrobasilar Insufficiency / Q000150:complications / Q000601:surgery*