Drupal-Bibcite0<style face="normal" font="default" size="100%">Oxpentifylline versus placebo in the treatment of erythropoietin-resistant anaemia: a randomized controlled trial</style><style face="normal" font="default" size="100%">Oxpentifylline versus placebo in the treatment of erythropoietin-resistant anaemia: a randomized controlled trial</style>