These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.
2. A hypothesis on the declining dizygotic twinning rates in developed countries. James WH Prog Clin Biol Res; 1978; 24 Pt B():81-8. PubMed ID: 724710 [TBL] [Abstract][Full Text] [Related]
3. Trends in twinning rates in metropolitan Atlanta before and after folic acid fortification. Kucik J; Correa A J Reprod Med; 2004 Sep; 49(9):707-12. PubMed ID: 15493560 [TBL] [Abstract][Full Text] [Related]
4. Frequency of twin births in developed countries. Pison G; D'Addato AV Twin Res Hum Genet; 2006 Apr; 9(2):250-9. PubMed ID: 16611495 [TBL] [Abstract][Full Text] [Related]
5. Biometric analysis of the multiple maternities in Finland, 1881-1990, and in Sweden since 1751. Fellman JO; Eriksson AW Hum Biol; 1993 Jun; 65(3):463-79. PubMed ID: 8319944 [TBL] [Abstract][Full Text] [Related]
6. Births: final data for 2004. Martin JA; Hamilton BE; Sutton PD; Ventura SJ; Menacker F; Kirmeyer S Natl Vital Stat Rep; 2006 Sep; 55(1):1-101. PubMed ID: 17051727 [TBL] [Abstract][Full Text] [Related]
7. Fertility, fecundity and twinning: a comparison of the trends in births and twinning in Australia from 1854 to 1982. Doherty JD Acta Genet Med Gemellol (Roma); 1988; 37(2):119-25. PubMed ID: 3071069 [TBL] [Abstract][Full Text] [Related]
8. Recent secular trends in dizygotic twinning rates in Europe. James WH J Biosoc Sci; 1986 Oct; 18(4):497-504. PubMed ID: 3782200 [TBL] [Abstract][Full Text] [Related]
9. Monitoring reproductive health in Europe: what are the best indicators? James WH Hum Reprod; 2007 May; 22(5):1197-9. PubMed ID: 17303628 [TBL] [Abstract][Full Text] [Related]
10. Increasing twinning rates in Norway, 1967-2004: the influence of maternal age and assisted reproductive technology (ART). Tandberg A; Bjørge T; Børdahl PE; Skjaerven R Acta Obstet Gynecol Scand; 2007; 86(7):833-9. PubMed ID: 17611829 [TBL] [Abstract][Full Text] [Related]
11. [Trends in the frequency of twin births]. Pison G Rev Prat; 2006 Dec; 56(20):2222-6. PubMed ID: 17352319 [TBL] [Abstract][Full Text] [Related]
12. A comparative study of twinning and triplet rates in 17 countries, 1972-1996. Imaizumi Y Acta Genet Med Gemellol (Roma); 1998; 47(2):101-14. PubMed ID: 10783768 [TBL] [Abstract][Full Text] [Related]
13. Fertility rates and future population trends: will Europe's birth rate recover or continue to decline? Lutz W Int J Androl; 2006 Feb; 29(1):25-33. PubMed ID: 16466521 [TBL] [Abstract][Full Text] [Related]
14. The changing sex ratios at birth during the civil war in Tajikistan: 1992-1997. Hohmann S; Roche S; Garenne M J Biosoc Sci; 2010 Nov; 42(6):773-86. PubMed ID: 20619059 [TBL] [Abstract][Full Text] [Related]
15. Temporal differences in the regional twinning rates in Sweden after 1750. Fellman J; Eriksson AW Twin Res; 2003 Jun; 6(3):183-91. PubMed ID: 12855067 [TBL] [Abstract][Full Text] [Related]
16. The effect of in vitro fertilization on birth rates in western countries. Habbema JD; Eijkemans MJ; Nargund G; Beets G; Leridon H; Te Velde ER Hum Reprod; 2009 Jun; 24(6):1414-9. PubMed ID: 19233869 [TBL] [Abstract][Full Text] [Related]
17. Projections of population-based twinning rates through the year 2100. Oleszczuk JJ; Keith DM; Keith LG; Rayburn WF J Reprod Med; 1999 Nov; 44(11):913-21. PubMed ID: 10589400 [TBL] [Abstract][Full Text] [Related]
18. Spatial variation in the twinning rate in Sweden, 1751-1850. Fellman J; Eriksson AW Twin Res Hum Genet; 2009 Dec; 12(6):583-90. PubMed ID: 19943721 [TBL] [Abstract][Full Text] [Related]
19. Trends in the twinning rate in Enugu, Nigeria. Onah HE; Ugwu GO J Obstet Gynaecol; 2008 Aug; 28(6):590-2. PubMed ID: 19003651 [TBL] [Abstract][Full Text] [Related]
20. Socioeconomic factors, country of birth, and years in Sweden are associated with first birth fertility trends during the 1990s: a national cohort study. Eggert J; Sundquist K Scand J Public Health; 2006; 34(5):504-14. PubMed ID: 16990162 [TBL] [Abstract][Full Text] [Related] [Next] [New Search]