Browse Reference Articles
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Mole (skin marking)
A mole or melanocytic naevus is a small, dark spot on the skin. It can be subdermal made of melanin, or a pigmented growth on the skin, formed mostly of ... > more -
Lung cancer
Lung cancer is a malignant tumour of the lungs. Most commonly it is bronchogenic carcinoma (about 90%). Lung cancer is the most lethal malignant tumour worldwide, causing up to 3 million deaths ... > more -
Visual field
The term visual field is often used in ophthalmology, where a visual field test is used to determine whether the visual field is affected by diseases that cause local scotoma or a more extensive loss ... > more -
Psychoactive drug
A psychoactive drug or psychotropic substance is a chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in temporary changes in perception, ... > more -
Spina bifida
Spina bifida describes birth defects caused by an incomplete closure of one or more vertebral arches of the spine, resulting in malformations of the spinal ... > more
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