E18 mouse placenta perfused through the umbilical artery at 5 µl min-1 with PBS + 0.01% FCF that has not been subjected to degassing or pre-warming. All animal experiments have been conducted in accordance with the National Institutes of Health Animal Use Guidelines and approved by the Institutional Animal Care and Use Committee at The University of Southern California. Full protocol described in:
Nick Goeden & Alexandre Bonnin. Ex vivo perfusion of mid-to-late-gestation mouse placenta for maternal-fetal interaction studies during pregnancy
Nature Protocols 8, 66--74 (2013) doi:10.1038/nprot.2012.144
http://dx.doi.org/10.1038/nprot.2012.144