fig1

Figure 1. BVD and LVD during mammary gland development. BVD measured as number of blood vessels per millimeter and LVD measured as number of lyve-1 positive vessels per millimeter in nulliparous (N), pregnant (P), lactating (L), involuting (days 2-10) and regressed (R), mammary glands (data adapted from Lyons et al.^[16] and Ramirez et al.^[144]). BVD: Blood vessel density; LVD: lymphatic vessel density