1. Li Q, Guan X, Wu P, Wang X, Zhou L, Tong Y, et al. Early transmission dynamics in Wuhan, China, of novel coronavirus-infected pneumonia. N Engl J Med. 2020; 382: 1199-207. [
DOI:10.1056/NEJMoa2001316]
2. WHO WHO/Europe. Coronavirus disease (COVID-19) outbreak- WHO announces COVID-19 outbreak a pandemic (Online). https://www.euro.who.int/en/health-topics/health-emergencies/coronavirus-covid-19/news/news/2020/3/who-announces-covid-19-outbreak-a-pandemic [8 September 2022]
3. Wastnedge EAN, Reynolds RM, van Boeckel SR, Stock SJ, Denison FC, Maybin JA, et al. Pregnancy and COVID-19. Physiol Rev. 2021; 101 (1): 303-18. [
DOI:10.1152/physrev.00024.2020]
4. Lau LS, Samari G, Moresky RT, Casey SE, Kachur SP, Roberts LF, et al. COVID-19 in humanitarian settings and lessons learned from past epidemics. Nat Med. 2020; 26 (5): 647-8. [
DOI:10.1038/s41591-020-0851-2]
5. Wang CL, Liu YY, Wu CH, Wang CY, Wang CH, Long CY. Impact of COVID-19 on Pregnancy. Int J Med Sci. 2021; 18 (3): 763-7. [
DOI:10.7150/ijms.49923]
6. Allotey J, Stallings E, Bonet M, Yap M, Chatterjee S, Kew T, et al. Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy: living systematic review and meta-analysis BMJ. 2020; 370: m3320 [
DOI:10.1136/bmj.m3320]
7. Zambrano LD, Ellington S, Strid P, Galang RR, Oduyebo T, Tong VT, et al. CDC COVID-19 Response Pregnancy and Infant Linked Outcomes Team. Update: Characteristics of Symptomatic Women of Reproductive Age with Laboratory-Confirmed SARS-CoV-2 Infection by Pregnancy Status - United States, January 22-October 3, 2020. MMWR Morb Mortal Wkly Rep. 2020; 69 (44): 1641-7. [
DOI:10.15585/mmwr.mm6944e3]
8. Jamieson DJ, Rasmussen SA. An update on COVID-19 and pregnancy. Am J Obstet Gynecol. 2022; 226 (2): 177-86. [
DOI:10.1016/j.ajog.2021.08.054]
9. COVID-19 Vaccines While Pregnant or Breastfeeding. [Access date: 10.10.2022]. Available from: https://www.cdc.gov/coronavirus/2019ncov/vaccines/recommendations/pregnancy.html#:~:text=CDC%20recommends%20that%20people%20who,it's%20time%20to%20get%20one.
10. Shimabukuro TT, Kim SY, Myers TR, Moro PL, Oduyebo T, Panagiotakopoulos L, et al. CDC v-safe COVID-19 Pregnancy Registry Team. Preliminary Findings of mRNA Covid-19 Vaccine Safety in Pregnant Persons. N Engl J Med. 2021; 384 (24): 2273-82. [
DOI:10.1056/NEJMoa2104983]
11. Yu Y, Li Y, Zhang Z, Gu Z, Zhong H, Zha Q, Yang L, et al. A bibliometric analysis using VOSviewer of publications on COVID-19. Ann Transl Med. 2020; 8 (13): 816. [
DOI:10.21037/atm-20-4235]
12. Chen Y, Zhang X, Chen S, Zhang Y, Wang Y, Lu Q, et al. Bibliometric analysis of mental health during the COVID-19 pandemic. Asian J Psychiatr. 2021; 65: 102846. [
DOI:10.1016/j.ajp.2021.102846]
13. Hu S, Wang X, Ma Y, Cheng H. Global Research Trends in Pediatric COVID-19: A Bibliometric Analysis. Front Public Health. 2022; 10: 798005. [
DOI:10.3389/fpubh.2022.798005]
14. Ahmad T, Murad MA, Baig M, Hui J. Research trends in COVID-19 vaccine: a bibliometric analysis. Hum Vaccin Immunother. 2021; 17 (8): 2367-72. [
DOI:10.1080/21645515.2021.1886806]
15. Alkan-Çeviker S, Öntürk H, Alıravcı ID, Sıddıkoğlu D. Trends of COVID-19 vaccines: International collaboration and visualized analysis. Infect Dis Clin Microbiol. 2021; 3: 129-36. [
DOI:10.36519/idcm.2021.70]
16. Dehghanbanadaki H, Seif F, Vahidi Y, Razi F, Hashemi E, Khoshmirsafa M, et al. Bibliometric analysis of global scientific research on Coronavirus (COVID-19). Med J Islam Repub Iran. 2020; 34: 51. [
DOI:10.47176/mjiri.34.51]
17. Ruiz-Roman R, Martinez-Perez C, Gil Prados I, Cristóbal I, Sánchez-Tena MÁ. COVID-19 and Pregnancy: Citation Network Analysis and Evidence Synthesis. JMIR Pediatr Parent. 2022; 5 (1): e29189. [
DOI:10.2196/29189]
18. Bansal M, Bansal J, Gupta BM, Kumar A. COVID-19 and Pregnancy: A Scientometric Assessment of Global Publications during 2020-21. J Young Pharm. 2021; 13 (3S): 122. [
DOI:10.5530/jyp.2021.13s.82]
19. Rasmussen SA, Smulian JC, Lednicky JA, Wen TS, Jamieson DJ. Coronavirus Disease 2019 (COVID-19) and pregnancy: what obstetricians need to know. Am J Obstet Gynecol. 2020; 222 (5): 415-26. [
DOI:10.1016/j.ajog.2020.02.017]
20. WHO Coronavirus (COVID-19) Dashboard. [Access date: 10.10.2022]. Available from: https://covid19.who.int/table.
21. URL: [Access date: 10.10.2022]. Available from: https://stacks.cdc.gov/view/cdc/119588.