a. [Table 2.1.a] Trend of resectability of total cases of histologically confirmed and unconfirmed invasive pancreatic cancer b. [Table 2.1.b] (Figure 2.1.c) Resection rate of histologically confirmed and unconfirmed invasive cancer c. [Table 2.1.d] (Figure 2.1.e) Trend of resectability of histologically confirmed invasive pancreatic cancer