Different measures of ventilatory efficiency in preoperative cardiopulmonary exercise testing are useful for predicting postoperative complications in abdominal cancer surgery - Stark, Elin; Gerring, Edvard; Hylander, Johan; Björnsson, Bergthor; Sandström, Per A; Hedman, Kristofer, Docent; Kristenson, Karolina (Acta Anaesthesiologica Scandinavica, 2025)