Author contributions
G.W.F. secured funding, conceived the initial idea, and was responsible for designing and leading the study. C.S. and K.C. supervised the entire process. G.W.F. conducted the analysis with support from C.S. and K.C. All authors discussed the data and implications of the study. G.W.F. drafted the manuscript, with input from C.S. and K.C. All authors read, revised and approved each section of the manuscript.