00289nam a2200121Ia 4500008004100000082001700041100001700058245003400075250000800109260002900117300001000146650001100156150201s2007    xx            000 0 und d  a617.51bO07S  aSEIDEN, A.M.  aOTOLARYNGOLOGY THE ESSENTIALS  a6TH  bTHIETIMEaNEW YORKc2007  a1-700  aE.N.T.