The answer would be: <span>addison's disease
Cortisol is produced by the adrenal glands that located above the kidney. </span>Addison's disease appears w<span>hen the adrenal glands produce less cortisol than needed. The cause might be autoimmune cells attacking the glands or infection of tuberculosis. Cortisol deficiency could be fatal in some cases, called adrenal crisis.
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What are your choices? Pteranodon means wing without tooth.