J. W. Ballantyne, Manual of antenatal
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: J. W. Ballantyne, Manual of antenatal. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: J. W. Ballantyne, Manual of antenatal. Wellcome Collection. Source: Wellcome Collection.