(sarcastic) people who give more births than birth quota allows

a newborn with light weight at birth

A Research into the Birth Year of Guan Zhong

a second birth

a soft birth canal hematoma

Abnormal birth

Abnormal gestation and birth

Abnormally high Sex Raxio at Birth

activephase of birth process

actual birth weight

adverse birth outcomes

after birth

Alcohol_related birth defects

Analgesic birth

artificial birth children

attitude to birth

average life expectancy at birth

Baby birth number

birth adjustment