00319nam a2200133Ia 4500008004100000020001800041041001200059082002200071100002000093245002000113260003000133300001200163650001000175231217s9999    xx            000 0 und d  a0-13-201636-2  aEnglish  a575.12  LEW2;1  R  aLewin, Benjamin 0aEssential genes  c2006bPearsonaNew Jersey  axix+594  agenes