00440nam a22001577a 4500008004100000020001800041040005500059080001400114245003600128260005300164300001000217650001300227653001200240942001300252999001700265230614b        |||||||| |||| 00| 0 eng d  a0-85229-345-3  aNational Science LibrarycNational Science Library  aR 61(026)  a1979 medical and health annual   aChicago: bEncyclopaedia Britannica Inc., c1979  a448p.  aMedical   aHealth   2udccREF  c43424d43424