The data only has pregnancy status for women aged 20 to 44, so that's the age group targeted by researchers. (health.com)
Record - keeping is often poor, in part because many women die in their homes rather than in clinics — and even when deaths are noted pregnancy status is not always referenced. (scientificamerican.com)
WITNESS ® Relaxin offers an early, inexpensive and reliable means for determining pregnancy status in dogs and cats. (zoetisus.com)