Authors’ contributions
TVT
H. Salo: project development, data collection, data analysis, manuscript writing; H. Sova: project development, data analysis, manuscript writing; J. Laru: project development, manuscript writing; A. Talvensaari-Mattila: project development, manuscript writing; T. Piltonen: project development, manuscript writing; V. Nyyssönen: project development, data collection; M. Santala: surgical treatment TVT and TOT; S. Koivurova: project development, manuscript writing; H. Rossi: project development, data analysis, manuscript writing.