TY  - RPRT
TI  - A defined collagen substrate and nutrient diffusion gradient culture system allows human colon cancer cells to assume a more differentiated phenotype.
AU  - M S Gesell
AU  - G D Luk
PY  - 1993
UR  - https://pubmed.ncbi.nlm.nih.gov/8353594/
ID  - 8353594
ER  -