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  1. pdfNLM Technical Bulletin, no.57-68 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/57-68-1974.pdf
    ... MEDLARS TECHNICAL BULLETIN - JULY 1974 Page 4 cross-references). ... number and cost will be announced when available. Item 3: New ...
  2. pdfNLM Technical Bulletin, no.81-92 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/81-92-1976.pdf
    ... node city, you will not incur any significant cost by logging off and logging in at another ... provide equivalent retrieval much faster and at less cost than stringsearching. LIBRARY NETWORK/MEDLARS TECHNICAL BULLETIN- JANUARY ...