Use of Chamomilla recutita in the prevention and treatment of oral mucositis in patients undergoing hematopoietic stem cell transplantation: a randomized, controlled, phase II clinical trial - Braga, Fernanda Titareli Merizio Martins; Santos, Ana C. F.; Bueno, Paula C. P.; Silveira, Renata Cristina de Campos Pereira; Santos, Claudia Benedita dos; Bastos, Jairo Kenupp; Carvalho, Emilia Campos de (Cancer Nursing, 2015)