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Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Illustration showing how the primary breast tumor metastasized through the lymphatic and blood vesse Illustration showing how the primary breast tumor metastasized through the lymphatic and blood vesse
The breast, cutaway view showing both internal and external features. The breast, cutaway view showing both internal and external features.
Monoclonal Antibodies and Cancer Cells Monoclonal Antibodies and Cancer Cells
Cultural Aspects of Being a Cancer Survivor Cultural Aspects of Being a Cancer Survivor
Oxytocin and breast-feeding. Oxytocin and breast-feeding.
Video: Hershey Chase Experiments

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