Researchers may have found an easy way to detect lung cancer in its early or even pre-cancerous stages, as well as a way to reverse the start of the deadly disease with a readily available, over-the-counter drug. "It's incredibly, incredibly exciting," said Dr. Patrick Nana-Sinkam, a lung cancer expert with the Ohio State University Comprehensive Cancer Center, who was not involved with the new study. "This definitely has potential." The minimally invasive procedure involves using a small brush to collect a smattering of cells from the windpipe (a bronchoscopy), explained study co-author Andrea Bild, an assistant professor of pharmacology and...