W. Erdel

Endosonography-guided cholangiopancreatography.

M. Wiersema, L. Wiersema, D. Sandusky, 1996, Gastrointestinal endoscopy.

Evaluation of patients with known or suspected Malignancy (M): comparison of CT and EUS with Fine Needle Aspiration biopsy (FNA)

M. Wiersema, L. Wiersema, D. Sandusky, 1995 .

Cost effectiveness of eus with Fine Needle Aspiration biopsy (FNA) in evaluating patients with Pancreatic Malignancy (PM)

M. Wiersema, L. Wiersema, D. Sandusky, 1995 .