- Letter to the editors2008 | First Faculty of Medicine
- letter to the editor2011 | First Faculty of Medicine, Faculty of Medicine in Pilsen
- Letter to the editor: +12009 | Faculty of Medicine in Hradec Králové
- Letter to the editor2014 | Faculty of Medicine in Hradec Králové
- Letter to the Editor2020 | Second Faculty of Medicine
- Letter to the editor2022 | First Faculty of Medicine
- Letter to the editor: Commotio cerebri2002 | First Faculty of Medicine
- Letter to the editor. NLR/NLCR2014 | First Faculty of Medicine
- Letter to the editor on the problem of meningitis2017 | First Faculty of Medicine
- Letter to the editors: Biobanks - news from the world2019 | Faculty of Medicine in Pilsen
- Letters to the editor Losse, S. et al : Pneumonia lipoid2004 | First Faculty of Medicine
- Bicentenary of the birth V.A.Bochdalek. Letter to the Editors.2002 | Second Faculty of Medicine
- Letter to the editor: hypoglycemia and treatment with opioids2019 | First Faculty of Medicine, Second Faculty of Medicine, Faculty of Physical Education and Sport
- Response to the Letter to the Editor by Ewenstein BM and Reininger AJ2013 | Second Faculty of Medicine
- Letter to the editor: Management and sequelae after misapplied intrathecal dactinomycin2001 | First Faculty of Medicine, Second Faculty of Medicine, Faculty of Physical Education and Sport
- Feasibility of intraoperative continuous glucose monitoring: Letter to the editor2023 | Second Faculty of Medicine
- Reply to letter to the editor: hybrid peripheral nerve sheath tumor2010 | Central Library of Charles University
- Gamma/delta T cell lymphoproliferation: a case report. Letters to the editor2000 | Faculty of Medicine in Hradec Králové
- Increase in antibodies against oxidized LDL particles in infants. Letter to the editor2004 | Faculty of Medicine in Pilsen, Central Library of Charles University
- Reply to letter to the editor: hybrid peripheral nerve sheath tumor2010 | Faculty of Medicine in Pilsen
- Letter to the Editor - Pulmonary Edema and Pink Markings on the Lungs in Hypothermia2018 | Faculty of Medicine in Hradec Králové
- Response to Letter to the Editor from Youn Hee Jee: Familial Short Stature - A New Phenotype of Growth Plate Collagenopathies2022 | Second Faculty of Medicine
- Reply Letter to the Editor Regarding the ELSO Interim Guidelines for Veno-Arterial Extracorporeal Membrane Oxygenation in Adult Cardiac Patients2022 | First Faculty of Medicine
- Letters to the editor as a source of information on turn-of-the-century readership: The case of the journal aḍ-Ḍiyā’ of Ibrahīm al-Yāzijī2023 | Faculty of Arts
- Response to Letter to the Editor: Palm Oil and Beta-Palmitate in Infant Formula2020 | Second Faculty of Medicine
- Letter to the Editor Regarding "Feasibility and Reliability of an Ultrasound Examination to Diagnose Piriformis Syndrome"2020 | First Faculty of Medicine
- Letter to the editors regarding the article entitled: "paradoxical undressing associated with subarachnoid hemorrhage in a non-hypothermia case?"2018 | Faculty of Medicine in Hradec Králové
- Letter to the Editor: Commentary to "Anatomical Variations of the Suprascapular Notch and its Importance in Suprascapular Entrapment Neuropathy"2021 | Second Faculty of Medicine
- Letter to the editors regarding the article entitled: "An autopsy case of heatstroke under the influence of psychotropic drugs"2021 | Publication without faculty affiliation