ven that bil... <a href="http://www.bio-medicine.org/inc/biomed/medicine-news.asp">http://www.bio-medicine.org/inc/biomed/medicine-news.asp</a> http://feeds.bio-medicine.org/latest-medical-newsDate:11/9/2011 clear stress testing was about 2.3 times more common in physicians who charged both technical fees (for such things as equipment and overhead) and professional fees (largely for interpretation of the results) than in those who billed for neither, said Shah.