Before he retired, my father was an executive with the Howard Hughes Medical Institute. At one of their many functions (of which I attended very few), a Nobel Laureate in Medicine commented that the "Practice of Medicine is as much art as it is science" . . . seems apropos to this topic.

Best.

Tim

SCC Right Tonsil, T2N1M0, Dx 12/04, Tx 40 radiation (180 rad), 8 Chemo (carbo), Tx ended 3/15/05, Selective neck dissection 5/24/05, 22 nodes, 4 levels, no evidence of metastatic malignancy!!! :-)