1. Heyns OS. Use of abdominal decompression in pregnancy and labour to improvefoetal oxygenation. Dev Med Child Neurol. 1958–1962;4:473–82.
2. Hill WC, Fleming AD, Martin RW, Hamer C, Knuppel RA, Lake MF, Watson DL, Welch RA, Bentley DL, Gookin KS, et al. Home uterine activity monitoring is associated with a reduction in preterm birth. Obstet Gynecol. 1990;76(1 Suppl):13S–8S. PMID: 2359574.
3. Urquhart C, Currell R, Harlow F, Callow L. Home uterine monitoring for detecting preterm labour. Cochrane Database Syst Rev. 2017;2:CD006172.
4. A cervix dilation device useful in presence of minimal resource settings. Eur J Mol Clin Med. ISSN 2515-8260. 2020;7(07):1646.
5. Cervical cap. In: Wikipedia [Internet]. 2022 [cited 2023 Mar 31]. Available from: https://en.wikipedia.org/w/index.php?title=Cervical_cap&oldid=1128252573.