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A laboratory model of vocal cord paralysis has been developed , and experiments using viral vectors containing candidate therapeutic genes are underway . Understanding how the HIV-1 virus actively diminishes the immune system 's capability of response , and HIV-1 's ability to mutate , which ultimately leads to drug therapy failure , are arguably some of the most important medical problems of the 21 $ ^ { st } $ century . Their shops are mini-bazaars , with barrels of sunflower seeds , corn nuts , and dried fruit , and sundries from rag dolls to worry beads . Special study counselors for each degree course are there to answer students ’ questions . We know they are there because of the effect they have on their host star . So , how do we know they are there ? What other possibilities are there for vehicle energy ? We would need at least 2 facilitators for the 12noon session and at least 4 for the 4pm for which we are expecting about 100 participants - more than half are CPS families .