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. Author manuscript; available in PMC: 2019 Aug 3.
Published in final edited form as: Expert Opin Drug Metab Toxicol. 2018 Aug 3;14(8):817–829. doi: 10.1080/17425255.2018.1499726

Figure 3: Schematic illustration of guinea pig placenta from the fetal to maternal interface.

Figure 3:

P-gp is expressed on the apical membrane of the syncytiotrophoblasts. No information is available about Bcrp expression in the placenta and fetus of this species. Arrow indicates the direction of transport. [38, 39]