"With great sadness, we have to announce that Alvin unexpectedly passed away early this morning after unforeseen complications following a routine surgical procedure, " read the message on alvinlee.com.
"She read a paper about this new procedure called radiofrequency ablation, and she wrote to the doctor who did the study, and asked him for the best place to go in the Northeast, " says James Parles, a pediatrician in Smithtown, New York.