Many people envision Earth’s structure as a tidy, layered system: the thin crust on the surface, the thick mantle below, and the core at the center. But beneath our feet lies a world far more ...

Potential patches of Earth's ancient crust, sometimes called "sunken worlds," may have just been discovered deep within the mantle, thanks to a new way of mapping the inside of our planet.

The Breslow thickness describes how deep a melanoma has grown into the layers of skin. Doctors need to know the depth of a melanoma to help stage it. The stage tells you the size of a cancer and if it ...

N1 Single lymph node metastasis, 2 cm or less in greatest dimension N1 Single regional lymph node metastasis in the true pelvis (hypogastric, obturator, external iliac or presacral lymph node ...

You might have surgery to remove lymph nodes in your tummy (abdomen). These are called the retroperitoneal lymph nodes. This operation is called a retroperitoneal lymph node dissection. This is a ...

Cinacalcet for the treatment of secondary hyperparathyroidism in patients with end-stage renal disease on maintenance dialysis therapy TA117 24 January 2007 24 January 2007 Methadone and buprenorphine ...