RT Journal Article SR Electronic T1 Pregnancy: a test of β-cell reserve JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E970 OP E970 DO 10.1503/cmaj.72557 VO 191 IS 35 A1 Dhastagir Sultan Sheriff YR 2019 UL http://www.cmaj.ca/content/191/35/E970.abstract