Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Elena Pizzo and Cathal Doyle and Rachel Matthews and James Barlow,Patient and public involvement: how much do we spend and what are the benefits?,Health Expectations,1369-6513,Wiley,2014-05-12,18,6,1918-1926,https://cir.nii.ac.jp/crid/1361418519579454080,https://doi.org/10.1111/hex.12204