title: Effectiveness of inhalation of aromatherapy in reducing anxiety in patients before colonoscopy: a systematic review protocol.
authors.affiliation: 1Graduate School of Medicine, Osaka University, Japan2Japan Centre for Evidence Based Practice: an Affiliate Center of the Joanna Briggs Institute3Graduate School of Nursing, Japanese Red Cross Kyushu International College of Nursing, Japan4Graduate School of Human Sciences, Osaka University, Japan.
authors.forename: Shingo
authors.initials: S
authors.lastname: Ueki
authors.forename: Eriko
authors.initials: E
authors.lastname: Matsunaka
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Swa
authors.forename: Kazutomo
authors.initials: K
authors.lastname: Ohashi
authors.forename: Kiyoko
authors.initials: K
authors.lastname: Makimoto