TY  - RPRT
TI  - Stem cells that make stems.
AU  - Detlef Weigel
AU  - Gerd Jürgens
PY  - 2002
DO  - 10.1038/415751a
UR  - https://pubmed.ncbi.nlm.nih.gov/11845197/
ID  - 11845197
ER  -