External Validation Study of First Trimester Obstetric Prediction Models (Expect Study I): Research Protocol and Population Characteristics.

Linda Jacqueline Elisabeth Meertens Hubertina C J Scheepers Raymond Gene De Vries Carmen D Dirksen Irene Korstjens Antonius Lm Mulder Marianne J Nieuwenhuijze Jan G Nijhuis Marc E A Spaanderman Luc J M Smits

Published in: JMIR research protocols (2017)

Netherlands Trial Registry (NTR): NTR4143; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=4143 (Archived by WebCite at http://www.webcitation.org/6t8ijtpd9).

Keyphrases

randomized controlled trial
pregnant women
clinical trial
study protocol
phase ii