Corrigendum to <Effect of platelet-rich plasma in alveolar distraction osteogenesis: a controlled clinical trial>: [British Journal of Oral and Maxillofacial Surgery 54/1 (2016) 83-87]. Issue 4 (May 2017) - Menezes, Diogo J.B.; Shibli, Jamil Awad; Gehrke, Sergio Alexandre; Beder, Andréa M.; Sendyk, Wilson R.