The most appropriate test to confirm a clinical diagnosis of early chronic pancreatitis is which of the following?
A.	Serum amylase determination
B.	Calculation of urinary amylase clearance
C.	Measurement of para-aminobenzoic acid absorption
D.	Endoscopic retrograde cholangiopancreatography
Answer:D
The most appropriate test to confirm a clinical diagnosis of early chronic pancreatitis is which of the following?
A.	Serum amylase determination B.	Calculation of urinary amylase clearance C.	Measurement of para-aminobenzoic acid absorption D.	Endoscopic retrograde cholangiopancreatography