article_metadata: Jianchuan Yang Hong Wei Yucheng Lin Ning Lin Songsong Wu Xunbin Yu
article_metadata: 10.3389/fonc.2021.565196
article_metadata: Front Oncol
article_metadata: 2021 Jul 9;11:565196.
article_metadata: ewing’s sarcoma elderly extraosseous ewing’s sarcoma primitive intestine tumor ultrasonography
article_metadata: CC BY
article_metadata: https://pubmed.ncbi.nlm.nih.gov/34307115/
article_metadata: Case Reports
article_metadata: PMC8299103
article_metadata: 34307115
article_metadata: Challenges of Diagnosing Primary Ewing's Sarcoma in the Small Intestine of the Elderly: A Case Report
article_metadata: 2021