JOHANSSON H., and ÖHRN P.-G. “Serum Calcium After Calcium Infusion: Role of Possible Ectopic Production of Calcitonin in the Thyro-Parathyroidectomized Rat”. Upsala Journal of Medical Sciences, vol. 79, no. 3, Sept. 1974, pp. 175-6, doi:10.3109/03009737409178401.