Comment on

• Developmental trajectory of prehematopoietic stem cell formation from endothelium.

  Zhu Q, Gao P, Tober J, Bennett L, Chen C, Uzun Y, Li Y, Howell ED, Mumau M, Yu W, He B, Speck NA, Tan K. Zhu Q, et al. Blood. 2020 Aug 13;136(7):845-856. doi: 10.1182/blood.2020004801. Blood. 2020. PMID: 32392346 Free PMC article.
• Multispecies RNA tomography reveals regulators of hematopoietic stem cell birth in the embryonic aorta.

  Yvernogeau L, Klaus A, Maas J, Morin-Poulard I, Weijts B, Schulte-Merker S, Berezikov E, Junker JP, Robin C. Yvernogeau L, et al. Blood. 2020 Aug 13;136(7):831-844. doi: 10.1182/blood.2019004446. Blood. 2020. PMID: 32457985 Free PMC article.