00295nam a2200097Ia 4500008004100000040001100041100001500052245007600067260004600143300000800189251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aHugh Clegg 0aBritish Medical JournalbThe Journal of the British Medical Association  c1963bBritish Medical AssociationaLondon  bV.9