"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 6739802 | Fish test circuit and method for evaluation of waterway barrier fish bypass systems A fish test circuit for the evaluation of waterway barrier bypass systems with a conduit having at least one bypass system test station, water flow within the conduit, fish introduced into the conduit, and measurement of the effectiveness of the bypass system under ... | 05/25/2004 |
| 6715959 | Fish ladder for passing dams The present invention is a safe and effective fish ladder for assisting fish in overcoming dams, especially in the upstream direction. The ladder comprises a series of relatively vertical open pools, which decrease in size in the upstream direction, the pools being ... | 04/06/2004 |