title: Primary hyperparathyroidism: just how 'primary' is it really?
authors.affiliation: Dr Stephen G. Ball, MD, FRCP University of Newcastle-upon-Tyne and Newcastle-upon-Tyne Hospitals Foundation NHS Trust, Newcastle-upon-Tyne, UK.
authors.forename: Richard
authors.initials: R
authors.lastname: Quinton
authors.forename: Stephen G
authors.initials: SG
authors.lastname: Ball
authors.forename: John
authors.initials: J
authors.lastname: Sayer
authors.forename: Simon H S
authors.initials: SH
authors.lastname: Pearce