Dear Colleagues ,
We are trying to find  the formula used   to estimate the growth rate
"doubling  times " of tumors  . 
Also we  need the "doubling times " of malignant gastrointestinal tract
tumors .
I have searched Pubmed , google and UptoDate without any success.
Many Thanks 
Cleo Wilkinson | Library | Sullivan Nicolaides Pathology
P +61 (07) 33778525 | E [log in to unmask]