A dispenser of a conventional refrigerator supplies only cold water. The DTC is designed to resist force applied to a railing stanchion in any direction. An opening in the outer wall passes ambient fluid into the chamber and a noise producing element places the cavity in fluid communication with the chamber. This invention also provides a method of preparing DNA encoding a cell surface antigen associated with a neoplastic, human cell. 06 when expressed as a fraction of the peak height of the <200> cubic cobalt peak.