00274nam a2200121Ia 45000030006000000080041000060400015000471000024000622450017000862600020001035460012001230050017001350STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aRomanoff Alexis, L.  aAvian embryo  bMacmillanc1960  aEnglish20220125170442.0