Dr. Maclernan, I am writing to you regarding my daughter, who you have met in the University of Florida in Gainsville in the 1990s. She is 18 years old and is presently having problems with hypocalcemia. She is asymptomatic of malabsorption and is not responding to oral calcium administration. She was just discharges from the hospital where she was getting IV Calcium gluconate 2gm Q6H. Her calciums would rise to about 9.0 with an ionized calcium of 4.4. As soon as IV was discontinued, she drops to the mid 7s and this is on an unheard dose of 28gms of elemental calcium po. Do you have any suggestions on how to possibly treat this?