Buy PDFs here: http://armandoh.org/shop "Hypercalcaemia is elevated calcium levels in serum and is a common manifestation of certain types of cancers and cancer metastasis. Normally, the parathyroid gland secretes PTH in response to low serum calcium levels. Primary hyperparathyroidism and malignancy are the two most common causes of increased serum calcium levels" Support me: 🖼️ Buy PDFs: http://armandoh.org/shop 💵 Patreon: http://www.patreon.com/armando 👕 Buy shirts: https://teespring.com/stores/ah-7 Social media: 📷 Instagram: http://instagram.com/armandohasudungan 🐦 Twitter: https://twitter.com/armandohasudung 📔 Facebook: https://www.facebook.com/ArmandoHasudungan Resources: 📕 Books: http://armandoh.org/resource 🎞️ Equipment: armandoh.org/armando-faigl You can send me mail: 📫 PO BOX 166, Randwick NSW 2031, Australia