Author L. Rodriguez M. Martin-Perez P. Vora L. Roberts Y. Balabanova G. Brobert S. Fatoba K. Suzart-Woischnik B. Schaefer A. Ruigomez Year of Publication 2019 DOI 10.1136/bmjopen-2019-031341 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS