11. In duplicate bridge, sponsoring organizations often impose a number of restrictions on psychic bids.12. :Cyclic Howell designs are used as " Howell movements " in duplicate bridge tournaments. 13. In duplicate bridge, a player normally plays with the same partner throughout an event.14. Specimens with a reactive ELISA result are retested in duplicate . 15. But with each new crisis, private aid groups proliferate, sometimes resulting in duplicated efforts. 16. Non-synonymous mutations resulting in the substitution of amino acids, increase in duplicate gene copies. 17. "Some facilities are regional in nature, so there's no sense in duplicating that ." 18. This results in duplicate content all over the web and is highly discouraged by Google. 19. In this example, all samples are performed in duplicate . 20. WHAT ELSE : Those into dabbling in duplicating restaurant creations should find this volume inspiring.