TY  - RPRT
TI  - Letter: Masked primary (or tertiary) hyperparathyroidism.
AU  - B I Hoffbrand
PY  - 1975
DO  - 10.1016/s0140-6736(75)92628-8
UR  - https://pubmed.ncbi.nlm.nih.gov/49578/
ID  - 49578
ER  -