Feature

  1. Food-Borne Disease

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  2. Artificial Heart Valve

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  3. Blood Test Tells Types of Arthritis

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  4. Tiny Dipoles Seen Safe

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  5. Cooling Capacity Rating

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  6. [Photograph]: Dressing Tank Cars

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  7. In Science Fields

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  8. Measles on the Way Out

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  9. Soil Bank Senseless in Face of World Food Need

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  10. Books of the Week

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  11. Patents of the Week

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  12. Front Matter

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