1. Department of Pathology; National Taiwan University Hospital and College of Medicine; National Taiwan University; Taipei Taiwan
2. Department of Pathology; King Faisal Specialist Hospital; Riyadh Saudi Arabia
3. Department of Pathology; Hospital Hima-San Pablo Bayamon; Bayamon Puerto Rico
4. Departments of Pathology, Urology and Oncology; The Johns Hopkins Hospital; Baltimore MD USA