The decidual response refers back to the thickening in the endometrium witnessed in early pregnancy. The existence of a double decidual sac signal is among the Preliminary indications of pregnancy. Dr. Saad Ramzi Ismail made this theory by inspecting the event and location on the placenta, particularly its finger-like projections https://griffinjudmw.blogerus.com/50859155/not-known-facts-about-ramzi-theory