File Name : suppl fig 1.pdf Caption : chicken derived capillaries (indicated with the arrows) growing into the microfluidic chip on cam. File Name : suppl fig 2.pdf Caption : the vascular density of the mouse embryonic kidney on chip, cultivated first on cam and continued in vitro conditions, is higher than that cultivated solely in vitro. File Name : suppl fig 3.pdf Caption : embryonic chicken blood leaking into the lateral channels of microfluidic chip transplanted to cam is represented on the photo.