1. Pain during bone marrow aspiration: prevalence and prevention
Philine Vanhelleputte, RN, MSc, Kristel Nijs, RN, MSc, Michel Delforge, MD, PhD, Georges Evers, RN, MSc, PhD, Steven Vanderschueren, MD, PhD 
Journal of Pain and Symptom Management 
Volume 26, Issue 3, Pages (September 2003)
DOI: /S (03)

2. Fig. 1
Box plot with median (horizontal line), range (whiskers), 25th and 75th percentiles (box), and outliers (dots), for procedural VAS scores during the observational phase.
Journal of Pain and Symptom Management  , DOI: ( /S (03) )

3. Fig. 2
Box plots with medians (horizontal lines), ranges (whiskers), 25th and 75th percentiles (boxes), and outliers (dots), for VAS scores during bone marrow aspiration in the groups assigned to tramadol and placebo, respectively.
Journal of Pain and Symptom Management  , DOI: ( /S (03) )