Contents
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							 1.  | 
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							 2.  | 
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							 3.  | 
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							 4.  | 
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							 General considerations for safe handling of library material  | 
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							 5.  | 
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							 6.  | 
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							 Digital Appendices available online at https://doi.org/10.11647/OBP.0138.11  | 
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