TY - JOUR T1 - Preventing recurrent ulcer bleeding. Switch from acetylsalicylic acid to clopidogrel or add esomeprazole? JF - Canadian Family Physician JO - Can Fam Physician SP - 455 LP - 457 VL - 52 IS - 4 AU - Shaimaa Ahmed AU - Tina Karwalajtys AU - Elaine Lau Y1 - 2006/04/01 UR - http://www.cfp.ca/content/52/4/455.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -