000			00293nam a2200109Ia 4500
008			220729s2017 xx 000 0 und d
041			_aeng
100			_aRichard Winn H
245			_aYoumans and Winn neurological surgery
250			_a7
260			_aPhiladelphia _bElesevier Publications _c2017
999			_c137220 _d137220