The east flanders prospective twin survey (EFPTS)
CA Derom, RF Vlietinck, EW Thiery…�- Twin research and�…, 2006 - cambridge.org
The East Flanders Prospective Twin Survey (EFPTS) is a prospective, population-based
registry of multiple births in the province of East Flanders, Belgium. EFPTS has several
unique features: it is population based and prospective, with the possibility of long-term
follow-up; the twins (and higher order multiple births) are ascertained at birth; basic perinatal
data recorded; chorion type and zygosity established; and since 1969 placental biopsies
have been taken and frozen at− 20� C for later determination of genetic markers. The EFPTS�…
registry of multiple births in the province of East Flanders, Belgium. EFPTS has several
unique features: it is population based and prospective, with the possibility of long-term
follow-up; the twins (and higher order multiple births) are ascertained at birth; basic perinatal
data recorded; chorion type and zygosity established; and since 1969 placental biopsies
have been taken and frozen at− 20� C for later determination of genetic markers. The EFPTS�…
The East Flanders prospective twin survey (EFPTS)
C Derom, R Vlietinck, E Thiery, F Leroy…�- Twin Research and�…, 2002 - cambridge.org
The East Flanders Prospective Twin Survey (EFPTS) is a registry of multiple births in the
province of East-Flanders, Belgium. It has several unique features: it is population-based
and prospective, with the possibility of long-term follow-up; the twins (and higher order
multiple births) are ascertained at birth; basic perinatal data are recorded; chorion type and
zygosity are established; and since 1969 placental biopsies have been taken and frozen at−
20� C for later determination of genetic markers. The EFPTS is the only large register that�…
province of East-Flanders, Belgium. It has several unique features: it is population-based
and prospective, with the possibility of long-term follow-up; the twins (and higher order
multiple births) are ascertained at birth; basic perinatal data are recorded; chorion type and
zygosity are established; and since 1969 placental biopsies have been taken and frozen at−
20� C for later determination of genetic markers. The EFPTS is the only large register that�…
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