Disparities in the Contribution of Low- and Middle-Income Countries to Palliative Care Research  Tania Pastrana, MD, Nandini Vallath, MD, John Mastrojohn, RN, MSN, MBA, Elizabeth Namukwaya, MD, Suresh Kumar, MD, Lukas Radbruch, MD, David Clark, PhD  Journal of Pain and Symptom Management  Volume 39, Issue 1, Pages 54-68 (January 2010) DOI: 10.1016/j.jpainsymman.2009.05.023 Copyright © 2010 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 1 Flow chart summarizing number of studies identified and ultimately included. Journal of Pain and Symptom Management 2010 39, 54-68DOI: (10.1016/j.jpainsymman.2009.05.023) Copyright © 2010 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 2 Publications from LMIC per year (through June 2008). Journal of Pain and Symptom Management 2010 39, 54-68DOI: (10.1016/j.jpainsymman.2009.05.023) Copyright © 2010 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 3 Number of publications by origin of the first author and place of research (according to World Bank income groups). Journal of Pain and Symptom Management 2010 39, 54-68DOI: (10.1016/j.jpainsymman.2009.05.023) Copyright © 2010 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 4 Economies vs. number of publications from low- and middle-income countries per year. Journal of Pain and Symptom Management 2010 39, 54-68DOI: (10.1016/j.jpainsymman.2009.05.023) Copyright © 2010 U.S. Cancer Pain Relief Committee Terms and Conditions

Fig. 5 Number and kind of publications from low- and middle-income countries per year (2008 was excluded to minimize bias). Journal of Pain and Symptom Management 2010 39, 54-68DOI: (10.1016/j.jpainsymman.2009.05.023) Copyright © 2010 U.S. Cancer Pain Relief Committee Terms and Conditions