This review was first published outside of Cochrane in 1994 and subsequently updated as a Cochrane review in 2000 (DOI: 10.1002/14651858.CD000214) and 2012 (DOI: 10.1002/14651858.CD000214.pub2). No protocol was published or registered.
Sharrad et al. (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: