TY  - RPRT
TI  - [From case to case: all beginnings are difficult].
AU  - Melanie Messer
AU  - Anke Hackenberg
AU  - Anja Dittmann
PY  - 2005
UR  - https://pubmed.ncbi.nlm.nih.gov/16106837/
ID  - 16106837
ER  -