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3. Methods and response characteristics. National Natality Survey United States, 1963. Wunderlich GS Vital Health Stat 1; 1966 Sep; 22(3):1-36. PubMed ID: 5298604 [No Abstract] [Full Text] [Related]
4. Trends in illegitimacy United States-1940-1965. Clague AJ; Ventura SJ Vital Health Stat 21; 1968 Mar; (15):1-90. PubMed ID: 5300602 [No Abstract] [Full Text] [Related]
5. Births: final data for 2003. Martin JA; Hamilton BE; Sutton PD; Ventura SJ; Menacker F; Munson ML Natl Vital Stat Rep; 2005 Sep; 54(2):1-116. PubMed ID: 16176060 [TBL] [Abstract][Full Text] [Related]
6. Birth and fertility rates for states and metropolitan areas: United States. Spratley E Vital Health Stat 21; 1977 Sep; (27):i-iv, 1-45. PubMed ID: 607562 [No Abstract] [Full Text] [Related]
7. Natality statistics analysis, 1964. Campbell AA; Clague A; Godley F Vital Health Stat 21; 1967 Feb; (11):1-38. PubMed ID: 5298821 [No Abstract] [Full Text] [Related]
8. Annual summary of vital statistics--1973. Wegman ME Pediatrics; 1974 Dec; 54(6):677-81. PubMed ID: 4431663 [No Abstract] [Full Text] [Related]
10. [The impact of cesarean section on fertility in Puerto Rico]. Vázquez Calzada JL P R Health Sci J; 1990 Apr; 9(1):69-73. PubMed ID: 2270260 [No Abstract] [Full Text] [Related]
12. Report of final natality statistics, 1996. Ventura SJ; Martin JA; Curtin SC; Mathews TJ Mon Vital Stat Rep; 1998 Jun; 46(11 Suppl):1-99. PubMed ID: 9666678 [TBL] [Abstract][Full Text] [Related]
13. Cesarean childbirth in Puerto Rico: the facts. Vázquez-Calzada JL P R Health Sci J; 1997 Dec; 16(4):395-400. PubMed ID: 9547831 [TBL] [Abstract][Full Text] [Related]
14. Population and family planning programs: a factbook. Nortman D Rep Popul Fam Plann; 1969 Oct; ():1-48. PubMed ID: 5406198 [No Abstract] [Full Text] [Related]
15. Annual summary of vital statistics--1981. Wegman ME Pediatrics; 1982 Dec; 70(6):835-43. PubMed ID: 7145535 [No Abstract] [Full Text] [Related]
16. Annual summary of vital statistics--1966. Wegman ME Pediatrics; 1967 Dec; 40(6):1035-45. PubMed ID: 6074123 [No Abstract] [Full Text] [Related]
17. [The prolonged maintenance of a high birth rate in the province of Cadiz: the recent beginning of the secular decline]. Martin Ruiz JF Estud Geogr; 1982 Feb; 43(166):61-85. PubMed ID: 12266605 [TBL] [Abstract][Full Text] [Related]
18. [Demographic trends in industrial and developing countries]. Maier W Geburtshilfe Frauenheilkd; 1970 Jan; 30(1):61-7. PubMed ID: 5438592 [No Abstract] [Full Text] [Related]
19. Annual summary of vital statistics--1970. Wegman ME Pediatrics; 1971 Dec; 48(6):979-83. PubMed ID: 5129459 [No Abstract] [Full Text] [Related]