Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Is the sex ratio between boys and girls correlated to the sex of precedent children?

Literature DB >> 13444853

Is the sex ratio between boys and girls correlated to the sex of precedent children?

Abstract

Entities: Species

Keywords: SEX CHARACTERISTICS

Year: 1956 PMID： 13444853

Source DB: PubMed Journal: Ann Med Exp Biol Fenn ISSN： 0003-4479

× No keyword cloud information.

1 in total

Authors: D J Pritchard; G R Hickman; R Nelson
Journal: Arch Dis Child Date: 1983-04 Impact factor: 3.791

1 in total