00343nam a2200109Ia 4500008004100000040001100041100001600052245010400068260003500172300001600207300001000223251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aR. Bressler 0aLife sciencesbthe international medium for rapid publicaton of communications in the life sciences  c1973bPergamon PressaNew York  aP. 753-1808  bV. 13