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On the evidence of a trend in the CO2 airborne fraction.
Bennedsen M, Hillebrand E, Koopman SJ. Bennedsen M, et al. Among authors: koopman sj. Nature. 2023 Apr;616(7956):E1-E3. doi: 10.1038/s41586-023-05871-6. Epub 2023 Apr 12. Nature. 2023. PMID: 37045925 No abstract available.
ED90 of spinal 2-chloroprocaine 1% in ambulatory knee arthroscopy up to 45 min: a randomized biased-coin- up-and-down sequential allocation trial.
Wesselink EJ, Koopman SJ, Vegt RV, Ven PMV, Aa JPV, Stapper C, Wesdorp F, Kok L, Zhang Y, Franssen EJ, Swart EL, Boer C, Leeuw MA. Wesselink EJ, et al. Among authors: koopman sj. Reg Anesth Pain Med. 2022 Apr;47(4):212-216. doi: 10.1136/rapm-2021-103089. Epub 2022 Jan 13. Reg Anesth Pain Med. 2022. PMID: 35027477 Clinical Trial.
Enhanced PeriOperative Care and Health protection programme for the prevention of surgical site infections after elective abdominal surgery (EPOCH): study protocol of a randomised controlled, multicentre, superiority trial.
de Jonge SW, Wolfhagen N, Boldingh QJ, Bom WJ, Posthuma LM, Scheijmans JC, van der Leeuw BM, van der Hoeven JA, Hering JP, Sonneveld DJ, van Geffen OE, Hendriks ER, Kluyver EB, Demirkiran A, van Lonkhuijzen LR, Slotema T, Draaisma WA, Koopman SJ, van Rossem CC, Over LM, van Duijvendijk P, Dijkgraaf MG, Hollmann MW, Boermeester MA. de Jonge SW, et al. Among authors: koopman sj. BMJ Open. 2020 May 25;10(5):e038196. doi: 10.1136/bmjopen-2020-038196. BMJ Open. 2020. PMID: 32457082 Free PMC article.
Structural time series models in medicine.
Harvey A, Koopman SJ. Harvey A, et al. Among authors: koopman sj. Stat Methods Med Res. 1996 Mar;5(1):23-49. doi: 10.1177/096228029600500103. Stat Methods Med Res. 1996. PMID: 8743077