Inside Medical University of Warsaw's largest research partnership: Medical University of Lodz

Behind Medical University of Warsaw's research output sits a defining relationship: 1,034 co-authored works with Medical University of Lodz (Poland) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 807 collaborating institutions across 73 countries, producing 14,937 joint works over the window, with international co-authors on 26% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.2, where the world average is 1.0.

The Research Collaboration Index, the first global account of how universities actually collaborate, publishes its first full edition on Tuesday 15 September at 09:00 UK.

Every figure derives from the open global research record and is checkable at source.