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  1. pdfNLM Technical Bulletin, no.249-257 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/249-257-1990.pdf
    ... choose to further restrict your CCRIS search for Syrian hamsters and to look into IRIS as well, ... following manner: [HSDB] SS 5/cf? USER: (ccris/cstu) Syrian and hamster SS (5) PSTG (91) [HSDB] SS 6/cf ...