Living systematic reviews: 2. Combining human and machine effort

- Thomas, James; Noel-Storr, Anna; Elliott, Julian; Living Systematic Review Network,; Agoritsas, Thomas; Hilton, John; Perron, Caroline; Akl, Elie; Hodder, Rebecca; Pestridge, Charlotte; Albrecht, Lauren; Horsley, Tanya; Marshall, Iain; Wolfenden, Luke; Wallace, Byron; McDonald, Steven; Mavergames, Chris; Glasziou, Paul; Shemilt, Ian; Synnot, Anneliese; Turner, Tari