This article by Henshaw and Finer is a comprehensive source for data on barriers to safe abortion services.

 Link to full text or source

This article by Boonstra published in the Guttmacher Policy Review examines the long history of funding restrictions around abortion, describing how poor women have born the brunt of anti-abortion sentiments in government.

Link to full text or source

The article by Finer et al is an comprehensive source for what creates delays before obtaining abortion services and the demographic trends that correspond with various delays.

Link to full text or source

This article by Dillon and Savage published by the Carsey Institutute examines rural attitudes, noting that while rural Americans are more likely to oppose abortion, there is also evidence of variation of these attitudes.

 Link to full text or source