TY - JOUR T1 - Refractory hypercalcemia owing to vitamin A toxicity in a 4-year-old boy JF - Canadian Medical Association Journal JO - CMAJ SP - E671 LP - E675 DO - 10.1503/cmaj.191568 VL - 192 IS - 25 AU - Melissa Lorenzo AU - Maxime Nadeau AU - Jennifer Harrington AU - Peter J. Gill Y1 - 2020/06/22 UR - http://www.cmaj.ca/content/192/25/E671.abstract ER -