LSHTM Research Online Gilson, Lucy; Hanson, Kara; Sheikh, Kabir; Agyepong, Irene Akua; Ssengooba, Freddie; Bennett, Sara; (2011) Building the field of health policy and systems research: social science matters. PLoS medicine, 8 (8). e1001079-. ISSN 1549-1277 DOI: https://doi.org/10.1371/journal.pmed.1001079 Downloaded from: http://researchonline.lshtm.ac.uk/id/eprint/38735/ DOI: https://doi.org/10.1371/journal.pmed.1001079 Usage Guidelines: Please refer to usage guidelines at https://researchonline.lshtm.ac.uk/policies.html or alternatively contact researchonline@lshtm.ac.uk. Available under license: http://creativecommons.org/licenses/by/2.5/ https://researchonline.lshtm.ac.uk