M. K. Choong, F. Galgani, A. G. Dunn and G. Tsafnat. (2014). Automatic evidence retrieval for systematic reviews. J Med Internet Res (Vol. 16, pp. e223).
Abstract: BACKGROUND: Snowballing involves recursively pursuing relevant references cited in the retrieved literature and adding them to the search results. Snowballing is an alternative approach to discover additional evidence that was not retrieved through conventional search. Snowballing’s effectiveness makes it best practice in systematic reviews despite being time-consuming and tedious. OBJECTIVE: Our goal was to