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Systematic Reviews > 2013 > 2 > 1 > 1-14
BMC Complementary and Alternative Medicine > 2013 > 13 > 1 > 1-14
BMC Public Health > 2013 > 13 > 1 > 1-11
Respiratory Research > 2013 > 14 > 1 > 1-8
Systematic Reviews > 2013 > 2 > 1 > 1-6
BMC Cardiovascular Disorders > 2012 > 12 > 1 > 1-19
Health and Quality of Life Outcomes > 2012 > 10 > 1 > 1-14
BMC Infectious Diseases > 2011 > 11 > 1 > 1-15