TY - BOOK AU - Marshall,Barry J. AU - McCallum,Richard W. AU - Guerrant,Richard L. TI - Helicobacter pylori in peptic ulceration and gastritis SN - 0865421080 PY - 1991/// CY - Boston, Mass. PB - Blackwell Scientific Publications KW - Gastritis KW - Microbiology KW - Helicobacter pylori KW - Peptic ulcer N1 - Includes index ER -