Crowther MA, Ginsberg J, Schünemann HJ, et al, editors. Evidence-based hematology. West Sussex: Wiley-Blackwell, 2008.

Evidence-based hematology, as part of the BMJ series “Evidence based medicine,” is designed to address clinical problems encountered by haematologists in daily practice. More than 90 authors have systematically reviewed the literature for clinical problems and make recommendations based on the relevant evidence. Most authors used the Grading Recommendations Assessment, Development, and Evaluation Working Group (GRADE) to present the strength of recommendation as either strong (grade 1) or weak (grade 2), followed by the quality of evidence as high (A), moderate (B), or low or very low (C), which gives 6 possible recommendation categories.

The book has 4 parts. The first, “Guide to the evidence” (chapters 1–6), introduces the …