“The differential diagnosis of tracheomalacia includes laryngomalacia, subglottic stenosis, congenital cysts, vocal cord paralysis, and hypocalcemic tetany.”

“Calcium balance studies in dairy cows under experimental induction and prevention of hypocalcaemic paresis puerperalis.”

“Low levels of vitamin D are also associated with life-threatening illnesses such as cardiomyopathy, hypocalcaemic seizures and more generalised symptoms such as fatigue.”