00290nam a2200097Ia 4500008004100000040001100041245005200052260006100104300001600165300001100181251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 4aThe Journal of the American Medical Association  cJuly-August, 1950bAmerican Medical AssociationaChicago  aP. 783-1588  bV. 143