When a team of health-care and social service workers in Allentown went looking for frequent visitors to emergency departments and hospitals, they quickly learned that many were dialysis patients. Ask those patients what's most important for maintaining their lives, and they'll, of course, say the dialysis treatment, when a machine cleans the bloodstream the way healthy kidneys would. Next on the list? For many, it's transportation. For a significant number of the patients served in the Allentown Super-Utilizer Partnership, the issue of simply getting to treatment is critical and sometimes more problematic than getting the treatment itself.