About the Authors

Sara Risseeuw

Roles Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Redmer van Leeuwen

Roles Conceptualization, Investigation, Methodology, Supervision, Writing – review & editing

Affiliation Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Saskia M. Imhof

Roles Writing – review & editing

Affiliation Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Pim A. de Jong

Roles Conceptualization, Methodology, Writing – review & editing

Affiliation Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Willem P. Th. M. Mali

Roles Writing – review & editing

Affiliation Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Wilko Spiering

Roles Conceptualization, Funding acquisition, Writing – review & editing

Affiliation Department of Vascular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Jeannette Ossewaarde–van Norel

Roles Conceptualization, Investigation, Supervision, Writing – review & editing

A.Ossewaarde-vanNorel@umcutrecht.nl

Affiliation Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands

Competing Interests

UNI-Pharma SA provided the etidronate and placebo capsules for free, but was not involved in the design, the execution, the analysis, or the reporting of the Treatment of Ectopic Mineralization in Pseudoxanthoma Elasticum trial. This does not alter our adherence to PLOS ONE policies on sharing data and materials.