The stage was distributed as intermediate stage (B): 42.2%, progressive stage (C): 28.9%, late stage (D): 15.6%, early stage (A): 8.9%, very early stage (0): 4.4%.
Kết quả: 9 BN nữ, 36 BN nam, giai đoạn trung gian (B): 42,2%, giai đoạn tiến triển (C): 28,9%, giai đoạn cuối (D): 15,6%, giai đoạn sớm (A): 8,9%, giai đoạn rất sớm (0): 4,4%.