Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0020-7292(12)00239-1
Abortion free resource MedlinePlus Health Information https://medlineplus.gov/abortion.html
subscription/membership/fee required Wiley https://doi.org/10.1016/j.ijgo.2012.05.005