The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Ultrasound examinations during pregnancy are considered safe, with no evidence of harm to fetuses when used correctly, contrary to an online claim of DNA damage based on a 40-year-old test-tube study ...

While computed tomography (CT) is now commonly used and considered to be clinically valuable, significant DNA doublestrand breaks (γ-H2AX foci) in white blood cells from adult and pediatric CT ...