https://www.selleckchem.com/products/Zileuton.html This study aimed to address the prognostic relevance of CD34+/CD38-/TIM3+ leukemic stem cell (LSC) frequency in patients with acute myeloid leukemia (AML) and its impact on patient outcome. We analyzed the expression of LSC markers (CD34+/CD38-/TIM3+) using flow cytometry in bone marrow samples of 53 AML cases before and after induction chemotherapy. The LSC frequency at diagnosis was significantly higher compared with that postinduction (P less then .001). Patients were categorized into high LSC expressers (≥ median) and low expressers ( less then median). Patients with AML with high number of LSCs at diagnosis had significantly lower induction of remission response (P = .0104), shorter disease-free survival, and shorter overall survival (P less then .001 for both) compared with those with lower LSC count. Cox regression analysis revealed that LSC frequency at diagnosis is an independent prognostic factor in AML. Assessment of LSCs (CD34+/CD38-/TIM3+) at diagnosis is recommended for refining of AML risk stratification. The COVID-19 pandemic originated in China and within about 4 months affected individuals all over the world. One of the limitations to the management of the COVID-19 is the diagnostic imaging to evaluate lung impairment and the patients' clinical evolution, mainly, in more severe cases that require admission into the intensive care unit. Among image examinations, lung ultrasound (LU) might be a useful tool to employ in the treatment of such patients. A survey was carried out on PubMed to locate studies using the descriptors ((Lung ultrasound OR ultrasound OR lung ultrasonography OR lung US) AND (coronavirus disease-19 OR coronavirus disease OR corona virus OR COVID-19 OR COVID19 OR SARS-CoV-2)). The period covered by the search was November 2019 to October 2020 and the papers selected reported LU in COVID-19. Forty-three studies were selected to produce this systematic review. The main LU findings re