Salling, S L, Jensen, J H, Mosegaard, S B, Sørensen, L & Mechlenburg, I 2023, ' Risk stratification for post-operative pulmonary complications following major cardiothoracic or abdominal surgery : Validation of the PPC Risk Prediction Score for physiotherapist's clinical decision-making ', The Clinical Respiratory Journal, vol. 17, no. 3, pp. 229-240 . https://doi.org/10.1111/crj.13579 Salling, S L, Jensen, J H, Mosegaard, S B, Sørensen, L & Mechlenburg, I 2023, ' Risk stratification for post-operative pulmonary complications following major cardiothoracic or abdominal surgery : Validation of the PPC Risk Prediction Score for physiotherapist's clinical decision-making ', Clinical Respiratory Journal . https://doi.org/10.1111/crj.13579