All participants were at Hoehn and Yahr stage 2.5 or less when on dopaminergic medication or taking dopamines for at least 4 weeks prior to enrollment
Mann JFE, Orsted DD, Brown-Frandsen K, et al

Recommendations for the peri-operative management of patients taking glucagon-like peptide-1 receptor agonists and glucose-dependent insulinotropic peptide [1] : The risk of pulmonary aspiration and mitigation strategies should be discussed with the patient using a shared decision-making approach." "Patients should continue to take glucagon-like peptide-1 receptor agonists throughout the perioperative period." "Patients and clinicians should adhere to recommended fasting guidelines." "Upper gastrointestinal symptoms alone should not be used to determine gastric content." "Regional anaesthesia should be considered as the primary anaesthetic technique, if appropriate." "Point-of-care gastric ultrasound should be considered before induction of anaesthesia to facilitate risk stratification, if appropriate." "Individualised pulmonary aspiration risk assessment should be completed, accounting for drug, patient and procedural factors." "Anaesthesia and airway management should aim to reduce the risk of pulmonary aspiration on induction of anaesthesia, during maintenance and after emergence of anaesthesia

Yes, you can adjust the B12 injection volume based on the preparations concentration
Note that due to the relative small size of the rats, rat fistulas regularly appeared as large and complex, and thereby, in this respect, corresponded to the worst presentation in the patients (Klicek et al., 2008
What makes tesamorelin and retatrutide theoretically complementary