1. How many missed abortions are caused by embryonic chromosomal abnormalities and what are their risk factors?
   Xin Li et al, 2023, Frontiers in Genetics CrossRef
2. Comparative cytogenetics of anembryonic pregnancies and missed abortions in human
   T. V. Nikitina et al, 2023, Vavilov Journal of Genetics and Breeding CrossRef
3. Imbalance of the Gut Microbiota May Be Associated with Missed Abortions: A Perspective Study from a General Hospital of Hunan Province
   Bingsi Gao et al, 2021, Journal of Immunology Research CrossRef
4. Case Report: Novel compound heterozygous variants in CHRNA1 gene leading to lethal multiple pterygium syndrome: A case report
   Jianlong Zhuang et al, 2022, Frontiers in Genetics CrossRef