Table 1.

Excluded studies with reasons

Date, Author	Reason excluded
2000, Wilkinson [34]	A literature review on many herbs for morning sickness. No evidence presented on mechanism of raspberry leaf.
1999, McFarlin et al. [35]	Survey of herb used by midwives for induction. No evidence presented on mechanism of raspberry leaf.
2000, Parsons et al. [26]	Article reporting on same retrospective study already in this review.
2002, Vohra [36]	Article on an RCT that did not appear to eventuate.
2002, Brown [37]	A review of the RCT already in this review
2007, Weeson [38]	No evidence presented on mechanism of raspberry leaf.
2008, Venskuton is et al. [39]	Evidence on different constituents on raspberry leaf when grown in different geographical locations, not on mechanism.
2009, Lans et al. [12]	Use in pets – no evidence of mechanism
2009, Holst et al. [14]	A review of the literature
2009, Holst et al. [40]	Survey of mothers
2010, Tiran [41]	Opinion piece
2012, Hall et al. [42]	Review of CIM for induction. No evidence on mechanism
2011, Trillo et al. [43]	An article on a proposed RCT in Spain that did not appear to proceed
2016, Weed [44]	An opinion piece
2017, Gilmartin [45]	Survey of health care professionals
2019, Munoz Balbontin et al. [46]	A Systemic review of many herbal products used in pregnancy and postnatal review. Only identified 3 studies on raspberry leaf that had already been incorporated in this review.