APOA2 and chronic pancreatitis: Statistically significant decreases in apoAII-ATQ/AT compared to healthy control were observed in chronic pancreatitis (p = 3.00 × 10−7), acute benign biliary obstruction (p = 1.91 × 10−3), stage-IA/IB/IIA (p = 8.40 × 10−7), and stage-IIB (p = 9.11 × 10−8) (Fig. 5B).