Lindqvist 2010.

Trial name or title	Vitamin D supplementation for prevention of placenta mediated pregnancy complications.
Methods	Randomised, controlled trial.
Participants	Pregnant women > 18 years of age, from 3 maternal healthcare units who agree to participate in the study. Exclusion criteria: < 18 years of age, hyperparathyroidism and sarcoidosis.
Interventions	Participants will be randomly assigned to 1 of 2 groups: group 1: will receive vitamin D, oral drops; group 2: will receive placebo.
Outcomes	Maternal: pre‐eclampsia, blood loss at delivery. Infant: blood flow in umbilical artery, growth restriction, and prematurity.
Starting date	06/04/2011.
Contact information	N/A
Notes	Sponsor: Karolinska University Hospital. EudraCT Number: 2010‐019483‐37.