Figure 5E. Copyright: This image is from [doi:10.1002/(SICI)1097-0177(199807)212:3<364::AID-AJA4>3.0.CO;2-F] Hoang BH; Thomas JT; Abdul-Karim FW; Correia KM; Conlon RA; Luyten FP; Ballock RT, "Expression pattern of two Frizzled-related genes, Frzb-1 and Sfrp-1, during mouse embryogenesis suggests a role for modulating action of Wnt family members." Dev Dyn 1998, 212:364-72. Reprinted with permission of Wiley-Liss Inc. [PMID:9671940]