TY - BOOK AU - Gough, David AU - Oliver, Sandy AU - Thomas, James TI - Systematic reviews and research: methods of synthesis - Vol. 3 SN - 9781473952188 U1 - 001.42 GOU PY - 2018/// CY - London PB - Sage Publications Ltd. KW - Qualitative methods KW - Research methods KW - Review methods ER -