@article{UBHD-69316994,
  author={Abdelhadi, Schaima and Şandra-Petrescu, Flavius Ionuţ and Vassilev, Georgi and Birgin, Emrullah and Rahbari, Nuh Nabi and Reißfelder, Christoph},
  title={Feasibility and safety of minimally invasive R1 vascular surgery for hepatocellular carcinoma},
  subtitle={a cohort study},
  year={2025},
  pages={1067-1076},
  language={eng},
  issn={1432-2218},
  volume={39},
  number={2},
  note={Ver{\"o}ffentlicht: 16. Dezember 2024 ; Gesehen am 11.03.2025},
  journal={Surgical endoscopy and other interventional techniques},
  doi={10.1007/s00464-024-11476-5},
}
@article{UBHD-69161246,
  author={Bach, Patrick and Grosshans, Martin and Koopmann, Anne and Kienle, Peter and Vassilev, Georgi and Otto, Mirko and Bumb, Jan Malte and Kiefer, Falk},
  title={Reliability of neural food cue-reactivity in participants with obesity undergoing bariatric surgery},
  subtitle={a 26-week longitudinal fMRI study},
  year={2021},
  pages={951-962},
  language={eng},
  issn={1433-8491},
  volume={271},
  number={5},
  note={Published online: 17 December 2020 ; Gesehen am 15.01.2024},
  journal={European archives of psychiatry and clinical neuroscience},
  doi={10.1007/s00406-020-01218-8},
}
@article{UBHD-68300406,
  author={Elrefai, Mohamad and Vassilev, Georgi and Otto, Mirko},
  title={Adherence to a follow-up program is improving weight loss},
  year={2017},
  pages={173-177},
  language={eng},
  issn={2168-0248},
  volume={12},
  number={4},
  note={Gesehen am 30.08.2018},
  journal={Bariatric surgical practice and patient care},
  doi={10.1089/bari.2017.0019},
}
@article{UBHD-68394243,
  author={Galata, Christian and Hetjens, Svetlana and Seyfried, Steffen and Vassilev, Georgi and Otto, Mirko},
  title={Comparison of nutritional screening parameters in oncology patients with malnutrition},
  subtitle={handgrip strength as a reliable parameter},
  year={2019},
  pages={141-148},
  language={eng},
  volume={21},
  number={1},
  note={Gesehen am 31.05.2019},
  journal={Progress in nutrition},
  doi={10.23751/pn.v21i1.7561},
}
@article{UBHD-68683780,
  author={Galata, Christian and Hodapp, Janina and Weiß, Christel and Karampinis, Ioannis and Vassilev, Georgi and Reißfelder, Christoph and Otto, Mirko},
  title={Skeletal muscle mass index predicts postoperative complications in intestinal surgery for Crohn's Disease},
  year={2020},
  pages={714-721},
  language={eng},
  issn={1941-2444},
  volume={44},
  number={4},
  note={This article originally appeared online on August 23, 2019 ; Gesehen am 26.01.2021},
  journal={Journal of parenteral and enteral nutrition},
  doi={10.1002/jpen.1696},
  url={https://doi.org/10.1002/jpen.1696},
  library={UB},
}
@article{UBHD-68746409,
  author={Gerken, Andreas and Rohr-Kr{\"a}utle, Kim-Kristin and Weiß, Christel and Seyfried, Steffen and Reißfelder, Christoph and Vassilev, Georgi and Otto, Mirko},
  title={Handgrip strength and phase angle predict outcome after bariatric surgery},
  year={2021},
  pages={200-206},
  language={eng},
  issn={1708-0428},
  volume={31},
  number={1},
  note={Published online: 15 August 2020 ; Gesehen am 09.06.2021},
  journal={Obesity surgery},
  doi={10.1007/s11695-020-04869-7},
  url={https://doi.org/10.1007/s11695-020-04869-7},
  library={UB},
}
@article{UBHD-69242621,
  author={Ghanad, Erfan and Staff, Sophie and Weiß, Christel and Goncalves, Mario and Santos, Maria Joao and Correia, Nuno and Vassilev, Georgi and Herrle, Florian and Reißfelder, Christoph and Greten, Henry Johannes and Otto, Mirko and Yang, Cui},
  title={Reduction of pain after laparoscopic bariatric surgery by personalized checkpoint acupuncture},
  subtitle={data of a STRICTA conform pilot study},
  year={2023},
  pages={2176-2185},
  language={eng},
  issn={1708-0428},
  volume={33},
  number={7},
  note={Online ver{\"o}ffentlicht: 29. Mai 2023 ; Gesehen am 13.08.2024},
  journal={Obesity surgery},
  doi={10.1007/s11695-023-06654-8},
}
@article{UBHD-69323582,
  author={Kalev, Georgi and B{\"u}ttner, Sylvia and Zhan, Tianzuo and Hofheinz, Ralf-Dieter and Boda-Heggemann, Judit and Reißfelder, Christoph and Seyfried, Steffen and Vassilev, Georgi and Hardt, Julia},
  title={Watch-and-wait approach following neoadjuvant chemo-radiotherapy for locally advanced rectal cancer},
  subtitle={a retrospective single-center cohort study},
  year={2024},
  pages={1-7},
  language={eng},
  issn={1096-9098},
  note={Gesehen am 31.03.2025},
  journal={Journal of surgical oncology},
  doi={10.1002/jso.28001},
}
@article{UBHD-68807070,
  author={Karampinis, Ioannis and Lion, Eliette and Hetjens, Svetlana and Vassilev, Georgi and Galata, Christian and Reißfelder, Christoph and Otto, Mirko},
  title={Trocar site HERnias after Bariatric Laparoscopic Surgery (HERBALS)},
  subtitle={a prospective cohort study},
  year={2020},
  pages={1820-1826},
  language={eng},
  issn={1708-0428},
  volume={30},
  number={5},
  note={Gesehen am 01.12.2021},
  journal={Obesity surgery},
  doi={10.1007/s11695-020-04400-y},
  url={https://doi.org/10.1007/s11695-020-04400-y},
  library={UB},
}
@article{UBHD-69330116,
  author={Knab, Katharina and Aurnhammer, Leon and B{\"u}ttner, Sylvia and Seyfried, Steffen and Herrle, Florian and Reißfelder, Christoph and Vassilev, Georgi and Hardt, Julia},
  title={Comparison of early postoperative recovery in patients undergoing elective colorectal surgery before and after ERAS® implementation—a single center three-armed cohort study},
  subtitle={research},
  year={2024},
  pages={1-8},
  language={eng},
  issn={1432-1262},
  volume={39},
  note={Gesehen am 10.04.2025},
  journal={International journal of colorectal disease},
  doi={10.1007/s00384-024-04770-0},
}
@article{UBHD-69294327,
  author={Schmitz, Daniel and Meier, Emilia and Axt, Steffen and Arlt, Gerrit and Kienle, Peter and Johannink, Jonas and K{\"o}nigsrainer, Alfred and Mohammad, Owais and Jakobs, Ralf and Willis, Stefan and Demir, Ihsan Ekin and Friess, Helmut and Hetjens, Svetlana and Ebert, Matthias and Reißfelder, Christoph and Vassilev, Georgi},
  title={Conservative versus surgical therapy for idiopathic and secondary megacolon or megarectum in adults},
  subtitle={a retrospective multicentre controlled study$dOriginalarbeit},
  year={2024},
  pages={1913-1923},
  language={eng},
  issn={1439-7803},
  volume={62},
  number={11 vom: Nov.},
  note={Online ver{\"o}ffentlicht: 11.9.2024 ; Gesehen am 27.01.2024},
  journal={Zeitschrift f{\"u}r Gastroenterologie},
  doi={10.1055/a-2360-5008},
}
@article{UBHD-68775562,
  author={Seyfried, Steffen and Drazyk, Axel and Vassilev, Georgi and Galata, Christian and Gerken, Andreas and Karampinis, Ioannis and Reißfelder, Christoph and Ronellenfitsch, Ulrich and Otto, Mirko},
  title={Erratum zu: Weiterhin keine Evidenz f{\"u}r Drainagen in der Bariatrie},
  year={2020},
  pages={669},
  language={ger},
  issn={1433-0385},
  volume={91},
  number={8},
  journal={Der Chirurg},
  editor={Ewerbeck, Volker},
  doi={10.1007/s00104-020-01194-8},
}
@book{UBHD-69050327,
  author={Vassilev, Georgi},
  organization={Universit{\"a}t Heidelberg},
  title={Auswirkungen bariatrischer Chirurgie auf die Ern{\"a}hrung, die Stofwechselprozesse und die K{\"o}rperzusammensetzung von Patienten mit Adipositas},
  address={Heidelberg},
  year={2022},
  pages={1 Band (verschiedene Seitenz{\"a}hlungen)},
  language={ger and eng},
  note={Publikationsbasierte Habilitationsschrift bestehend aus einem Text und 6 Zeitschriftenaufs{\"a}tzen},
  school={Habilitationsschrift,  Ruprecht-Karls-Universit{\"a}t Heidelberg,  2022,  Kumulative Habilitationsschrift},
  library={UB [Signatur: 2023 U 292] ; UW [Signatur: Habil. 22.15]},
}
@article{UBHD-68496605,
  author={Vassilev, Georgi and Lammert, Alexander and Galata, Christian and Seyfried, Steffen and Weiß, Christel and Otto, Mirko},
  title={Myoglobin determination after bariatric surgery has no additional benefit},
  year={2019},
  pages={107-112},
  language={eng},
  issn={2168-0248},
  volume={14},
  number={3},
  note={Gesehen am 04.03.2020},
  journal={Bariatric surgical practice and patient care},
  doi={10.1089/bari.2018.0054},
}
@article{UBHD-68309227,
  author={Vassilev, Georgi and Hasenberg, Till and Krammer, Johannes and Kienle, Peter and Ronellenfitsch, Ulrich and Otto, Mirko},
  title={The phase angle of the bioelectrical impedance analysis as predictor of post-bariatric weight loss outcome},
  year={2017},
  pages={665-669},
  language={eng},
  issn={1708-0428},
  volume={27},
  number={3},
  note={First online: 27 July 2016 ; Gesehen am 26.09.2018},
  journal={Obesity surgery},
  doi={10.1007/s11695-016-2315-9},
}
@article{UBHD-68905406,
  author={Vassilev, Georgi and Galata, Christian and Finze, Alida and Weiß, Christel and Otto, Mirko and Reißfelder, Christoph and Blank, Susanne},
  title={Sarcopenia after Roux-en-Y Gastric Bypass},
  subtitle={detection by skeletal muscle mass index vs. bioelectrical impedance analysis},
  year={2022},
  pages={1-9},
  language={eng},
  issn={2077-0383},
  volume={11},
  note={Gesehen am 08.04.2022},
  journal={Journal of Clinical Medicine},
  doi={10.3390/jcm11061468},
  url={https://doi.org/10.3390/jcm11061468},
  library={UB},
}
@article{UBHD-69348046,
  author={Vedder, Katharina and Vassilev, Georgi and Şandra-Petrescu, Flavius Ionuţ and Abdelhadi, Schaima and Hermann, Maike and Reißfelder, Christoph},
  title={Pancreatic Solid Pseudopapillary Neoplasms in Childhood},
  year={2025},
  pages={e501-e504},
  language={eng},
  issn={1536-4828},
  volume={54},
  number={5},
  note={Gesehen am 26.05.2025},
  journal={Pancreas},
  doi={10.1097/MPA.0000000000002466},
}
@article{UBHD-69081795,
  author={Yang, Cui and Brecht, Julia and Weiß, Christel and Reißfelder, Christoph and Otto, Mirko and Buchwald, Jane N. and Vassilev, Georgi},
  title={Serum glucagon, bile acids, and FGF-19},
  subtitle={metabolic behavior patterns after Roux-en-Y gastric bypass and vertical sleeve gastrectomy},
  year={2021},
  pages={4939-4946},
  language={eng},
  issn={1708-0428},
  volume={31},
  number={11 vom: Nov.},
  note={Published online: 30 August 2021 ; Gesehen am 02.06.2023},
  journal={Obesity surgery},
  doi={10.1007/s11695-021-05677-3},
}
@article{UBHD-69243749,
  author={Yang, Cui and Kessler, Mia and Taebi, Niki and Hetjens, Michael and Reißfelder, Christoph and Otto, Mirko and Vassilev, Georgi},
  title={Remote follow-up with a mobile application is equal to traditional outpatient follow-up after bariatric surgery},
  subtitle={the BELLA pilot trial},
  year={2023},
  pages={1702-1709},
  language={eng},
  issn={1708-0428},
  volume={33},
  number={6},
  note={Online ver{\"o}ffentlicht: 21. April 2023 ; Gesehen am 15.08.2024},
  journal={Obesity surgery},
  doi={10.1007/s11695-023-06587-2},
}
@article{UBHD-69052851,
  author={Yang, Cui and Kessler, Mia and Taebi, Niki and Moorthy, Preetha and Reißfelder, Christoph and Otto, Mirko and Vassilev, Georgi},
  title={Smartphone application-based follow-up care of patients after bariatric surgery},
  subtitle={a mixed-method study of usability},
  year={2022},
  pages={1-8},
  language={eng},
  issn={2055-2076},
  volume={8},
  note={Gesehen am 17.03.2023},
  journal={Digital health},
  doi={10.1177/20552076221129072},
  url={https://doi.org/10.1177/20552076221129072},
  library={UB},
}