Figure 1From: Reduced quality and accelerated follicle loss with female reproductive aging - does decline in theca dehydroepiandrosterone (DHEA) underlie the problem? Graph of the frequency of spontaneous abortion by age, amongst pregnancies monitored in a group of normal women who had no interventions and were studied prospectively from the time they attempted to conceive in a study known as the PALS: Pregnancy and Lifestyle Study. Back to article page