Registration fee: 

For members:

ISTS members and undergraduate/PhD students: free

Non-ISTS-members, via ISTS membership (registration page):
- Full members: AUD180/~EUR115/~USD130
- Student members: AUD100/~EUR65/~USD75
- Non-professional/retired: AUD140/~EUR90/~USD105

ICOMBO members: free

For non-members (the payment process is at the registration into the FLOOR program):

Registration fee (for all days): Non ISTS / ICOMBO members: EUR 230

1 day registration fee:  AUD90/~EUR57/~USD65

Information on membership:

ISTS and
Benefits of joining the International Society for Twin Studies - ISTS,
-Low annual membership fees: Full (AUD180), Student (AUD100), Non-professional/retired (AUD140)
-Free of discounted registration at ISTS conferences
-Subscription to Twin Research & Human Genetics (H-index 82, increasing impact factor, low publication costs, regular special issues)
-News of future conferences & events




Registration: 5 Nov, 2021 Extended until November 10, 2021 closed
Abstract submission: 20 Oct, 2021 Extended until October 29, 2021 closed
Abstract format: max 250 words. Order: Introduction, Methods, Results, Conclusions, or freestyle.

Presentations: oral or e-poster (pre-recorded)

Posters must be in the form of a pre-recorded 3-minute talk to be available throughout the conference and  allow for availability and poster judges.

Short talks
•    The short talks are 3 minutes in length and there is no question time
•    Presenters have been allocated to a session in the program, depending on what session they chose when submitting their abstract
•    It is preferable that the presenter does the talk live, but it can be pre-recorded if necessary
•    Whether the talk is live or pre-recorded, a backup powerpoint presentation must be sent to the conference Technical Support at as soon as possible
•    The file should be saved as a narrated PowerPoint presentation (in 16:9 format) as an .mp4  or .avi file named “Session number presenter surname” (e.g. 9A_Jefferson)

•    The poster presentations are all 3 minute pre-recorded talks
•    There are 2 sessions, one on Saturday (e-Poster Session 1) and one on Sunday (e_Poster Session 2), where presenters will be online to discuss their poster presentations.  See the program for details of which presenters will be available at each session.
•    The talks will also be available for viewing and downloading over the 4 days of the conference via a designated session.
•    The talk should should be saved as a narrated PowerPoint presentation (in 16:9 format) as an .mp4  or .avi file named “P1_surname” or “P2_surname” (depending on which session the presenter will be at)
•    The file must be sent to the conference Technical Support at as soon as possible.

Galton Prize for the two best student oral presentations: Au$1,000 & $500
Gedda Prize for the two best student posters: Au$1,000 & $500
ICOMBO award for the best research paper from an Early Career Researcher that would benefit multiple birth families: $1,000


James Shields Award for lifetime contributions to twin research
Prof. Jeffrey Craig

Galton Prize for best student presentation
Sophie Groene
Changes in structural brain development after selective fetal growth restriction in monochorionic twins   
Leiden University Medical Center, Leiden, The Netherlands   

Christopher J. Yoon
Tracing human twinning process using somatic mutations   
Washington University School of Medicine, St. Louis MO, USA

Gedda Prize for best student poster to be announced by David Tarnoki
Nikki Hubers
A Transcriptomic-Wide Association Study of Spontaneous Dizygotic Twinning and its Relation to the Fertility Trait Number of Children Ever Born   
Vrije Universiteit, Amsterdam, The Netherlands

Rebekka Koeck   
Utilizing birthweight discordant monozygotic twins to investigate the effect of the in vivo early embryonic environment on DNA methylation   
Maastricht University & Maastricht University Medical Centre, Maastricht, The Netherlands

ICOMBO Prize for best ECR paper on research of benefit to multiple birth families
Sophie Groene
The Long-term Effects of selective fetal growth restriction in MONochorionic twins: The LEMON study   
Leiden University Medical Center, Leiden, The Netherlands