smad4 q249 - could be genetic
chromosome 18q21.1
http://www.ncbi.nlm.nih.gov/pubmed/19584151
poor outcome
http://www.ncbi.nlm.nih.gov/pubmed/22321641
http://courses.bio.unc.edu/2011Spring/Biol445/Bob's%20powerpoints/Mark's%20Student%20presentations/4-5%20SMAD4.pdf
*** FIGURE OUT HOW TO GET THIS MUSHROOM *** http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3699575/