Methods
Inclusion for the ESPRESSO trial (NTR5690) was offered to women presenting with PMB and a thickened endometrium of more than four mm at the department of Obstetrics and Gynecology in Máxima Medical Centre, Veldhoven, and Maastricht University Medical Centre, Maastricht, between April 2016 and February 2018. All details on the randomized controlled trial are described in the manuscript and study protocol of the ESPRESSO trial [