We will also collect the following data from each volunteer: their name, age, sex, body weight, height, any concurrent medication use, and a recent history of alcohol ingestion. These data will be used for correlation analyses to determine any relationship of urinary acetylamantidine to the particular cancer diagnosis, sex, and/or the history of alcohol consumption. All of these data will be coded by the principal investigator, and individually identifying information locked in a secure cabinet. Access to the data by other than the principal investigator and/or their attending physician will not be allowed.