Researchers at St. Jude Children’s Research Hospital want to know whether adding therapies like massage, humor and relaxation training to the standard drug regimen does more than provide short-lived relief for young cancer patients. They also are asking whether such complementary approaches also ease pain, nausea and other treatment side effects as well as help patients recover faster and leave the hospital sooner. They landed a five-year, $2 million National Cancer Institute grant to find out.