Pterosaur cervical vertebrae had unique specializations, varying morphologically between species and in different areas of the neck within the same individual (Wellnhofer 1991a, Kellner & Tomida 2000, ...

About 80% of psoriasis cases involve plaques on the scalp. Ringworm of the scalp (tinea capitis) is a fungal infection that causes an itchy, scaly rash on the scalp, which may appear circular, or ring ...