Contributions
Rf, MH, JAE conceived the study, NC, HH, MH, OH, PK, EM, OP, ADS
contributed to provide samples. RF conducted laboratory analysis and
bioinformatics under supervision of MH and JLAP, and RF drafted the
manuscript as part of his PhD supervised by JAE and MH. JAE, JLAP and MH
read and commented on several earlier versions. All authors read and
improved the joint manuscript.