00323nam a2200109Ia 4500008004100000040001100041100001800052245006700070260005300137300001300190300001000203251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aJ. B. Bijlsma 0aExcerpta MedicabThe International Medical Abstracting Service  c1981bThe Massachusetts Medical SocietyaEngland  aP. 1-520  bV. 44