Essentials Of Human Disease 2nd Edition by Leonard Crowley

تمرين 13

Maryann Larson wants to defer a pregnancy until she completes her college education. She has heard that contraceptive pills are effective but doesn't understand how they function to prevent a pregnancy. She has also heard of pills that can be taken after intercourse to prevent pregnancy, but she doesn't understand how they differ from regular contraceptive pills. How would you answer her questions?