000			00857cas a2200181 a 4500
999			_c6018 _d6018
022	0		_a0019-3879
082	0	4	_a025.3361 _bM38
245	1	0	_aMedical subject headings: supplement to index medicus
260			_aBethesda, Md. : _bU.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Library of Medicine ;
300			_avolumes _b29 cm.
490	1		_a<1977>-19 : DHEW publication no. (NIH)
490	1		_a<1989->: NIH publication
500			_a1960-66 has subtitle: Main headings and cross references used in Index medicus and National Library of Medicine catalog (varies slightly).
500			_aImprint varies: Washington, D.C., 1960-19 ; Bethesda, Md., <1989->
500			_aNo longer distributed to depository libraries in a physical form after v. 45 (2004).
650		0	_aSubject headings
942			_cBK