Pubdate: Fri, 08 May 1998 Source: San Francisco Chronicle (CA) Contact: Website: http://www.sfgate.com/chronicle/ LUNGREN'S OBSESSION Editor -- Attorney Dan Lungren's rigid opposition to medical marijuana continues -- why hasn't his office revealed the latest research findings since his proposed study on what he considers medicinally ``useless?'' Is he afraid to say? It's election time, you know. RONALD PENNYWORTH Piedmont - --- Checked-by: Melodi Cornett