After a short illness, Dr. Evelyn Billings (aged 95), world-renowned pioneer of natural fertility regulation and Member Emeritus of the Pontifical Academy for Life, passed away.

Borgman Scott
2013-02-16

The Billings where declared “doctors of the year 2022” by the FIAMC

http://www.billings-ovulation-method.org.au/act/bom.shtml

http://www.fiamc.org/bioethics/humanae-vitae/