Gassner, L. and Mayer-Ferbas, J. (2020): Effectiveness of Music Therapy for Autism Spectrum Disorder, Dementia, Depression, Insomnia and Schizophrenia. HTA-Projektbericht 133.

Gassner, L. (2021): Implantation of Bulking Agents for Faecal Incontinence. Update 2021. Decision Support Document 87/1.

Walter, M. and Gassner, L. (2021): Liposuction for surgical therapy of lipoedema. Decision Support Document 125.