<qa>  What is the KDQOL survey?Subjects will complete the KDQOL survey, which is a kidney-specific measure of health-related quality of life ie, Kidney Disease and Quality of LifeTM KDQOLTM-36 Version 1. Scores from the Active Treatment Group will be compared against scores from the Deferred Treatment Group. Subjects from the Deferred Treatment Group will comprise the contemporaneous control group for the analysis of KDQOL scores. In addition, each subjects baseline scores will be compared against the individual subjects KDQOL scores obtained through 12 months after the last NKA injection. Additionally, KDQOL scores from subjects who received a single NKA injection may be compared against scores from subjects who received two injections. 