TY - JOUR T1 - The ScHARR LMIC filter : adapting a low- and middle-income countries geographic search filter to identify studies on preterm birth prevention and management JO - Research Synthesis Methods PY - 2022/02/26 AU - Sutton A AU - Campbell F ED - DO - DOI: 10.1002/jrsm.1552 PB - Wiley VL - 13 IS - 4 SP - 447 EP - 456 Y2 - 2025/07/01 ER -