jstor.org/stable/352992
cdc.gov/nchs/data/seri…
onlinelibrary.wiley.com/doi/abs/10.111…
jstor.org/stable/23027992
royalsocietypublishing.org/doi/10.1098/rs…
jstor.org/stable/353867
onlinelibrary.wiley.com/doi/abs/10.111…
link.springer.com/article/10.100…
Religiosity was a significant factor in fertility, even with all other factors controlled for.
onlinelibrary.wiley.com/doi/abs/10.111…