id author title date pages extension mime words sentences flesch summary cache txt cord-027892-5ik9f6nx So, Mitsuhito The authors' response: A diagnostic confusion between serotonin syndrome and neuroleptic malignant syndrome 2020-06-25 .txt text/plain 510 38 54 First, we could not describe the details of symptoms or the differential diagnosis in the text because of the word limit; therefore, we sincerely appreciate the authors/editors providing us the opportunity to describe the details of neuroleptic malignant syndrome (NMS) in patients with COVID-19 infection. The authors proposed a possible diagnosis of serotonin syndrome (SS) in our reported two cases of NMS following COVID-19 infection because both cases fulfilled the Sternbach's criteria of SS [1] . In case 1, hyperreactivity symptoms such as tremor and myoclonus were not observed. This patient had loose stools and watery stools since the time of admission, but no apparent improvement was observed even after the discontinuation of the causative drugs. In case 2, hyperreactivity and rigidity findings such as tremor and myoclonus were not recognized. Neuroleptic malignant syndrome in patients with COVID-19 Neuroleptic malignant syndrome in patients with COVID-19 ./cache/cord-027892-5ik9f6nx.txt ./txt/cord-027892-5ik9f6nx.txt