Metal Biliary Stent Market Size and Forecasts (2021 - 2031), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage:by Type ( Covered Metal Biliary Stent, Uncovered Metal Biliary Stent ); Application ( Benign Biliary Obstruction, Malignant Biliary Obstruction ), and Geography (North America, Europe, Asia Pacific, and South and Central America)