one was doctor dennis grahams from colorado. he is remembered for hiking halfway up mount everest to deliver dental care for buddhist monks. we are told the good doctor grahams worked a third of the year free of charge as a volunteer dentist helping those who needed so much and could only pay with their gratitude. lori matthews, co-founder of global dental relief is joining us by phone from denver with more on the charitable works and contributions of the late dr. tom graham. lori, good to have you with us. thank you. why don t you tell us more about tom. i mean, just talking about his hike up mount everest to help these buddhist monks, about 100 other people, also, is just the tip of what this gentleman did. that s right. tom was our very first volunteer in 2001. he immediately dedicated himself to the work. he gave four months a year.