Developing a Direct Observation Measure of Therapeutic Connection in Psilocybin-Assisted Therapy: A Feasibility Study - Robert Gramling; Emily Bennett; Keith Curtis; William A. Richards; Donna M. Rizzo; Francesca Arnoldy; Logan P Hegg; Jon Porter; Heather Honstein; Susanna Pratt; Elise C. Tarbi; Maija Reblin; et al. (Journal of Palliative Medicine, 2023)