Hardly Ever

A melanin-forming tumor that arose spontaneously in a non-inbred mouse, and that is transplantable to mice of many strains but does not…

An accessory gland of the orbit.

Work tasks that require a great amount of physical or mental effort.

A question about whether an individual has or had a hard time telling other people about their infection.

A squamous cell carcinoma that arises from the hard palate. It usually presents as a papillary or exophytic mass.

A benign, slow-growing and painless neoplasm that arises from the minor salivary glands in the hard palate. It is composed of…