000 00300nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
022 _a0019-3879
040 _aCNCLSA
245 0 _aMedical Subject Headings
260 _c1980
_bNational Institutes of Health
_aU.S.A
300 _bV. 21
942 _cJRBV
999 _c18182
_d18182