Competing interests
The authors declare that they have no competing interests.
Authors’ contributions
JvA was responsible for the conception and design of the study, researched data, and wrote the manuscript. HPH contributed to acquisition of data, discussion and reviewed/edited manuscript. MCRFvD contributed to acquisition of data and reviewed/edited manuscript. CPHL and ICCH coordinated inclusion of individuals with CAD and reviewed the manuscript. CJZ coordinated inclusion of individuals with PAD and reviewed the manuscript. MGV contributed to acquisition of data, discussion and reviewed/edited manuscript. BHRW coordinated inclusion of diabetic individuals and reviewed/edited the manuscript. HvG contributed to discussion and reviewed/edited manuscript. JLH was responsible for the conception and design of the study, researched data, contributed to discussion and reviewed/edited manuscript. All authors read and approved the final manuscript.