Second trimester maternal serum human chorionic gonadotropin and unconjugated oestriol levels in blacks and whites Letter

cited authors

  • Simpson, JL; Elias, S; Morgan, CD; Shulman, L; Umstot, E; Andersen, RN

fiu authors

publication date

  • June 16, 1990

Digital Object Identifier (DOI)

start page

  • 1459

end page

  • 1460

volume

  • 335

issue

  • 8703