The Ritz-Carlton, St. Louis 100 Carondelet Plaza St. Louis, Missouri 63105 314-863-6300 or 1-800-241-3333 QMP has secured a block of rooms at special group rates are $189.00 for single or double occupancy. This space is limited, and rooms will be filled on a first-come first-served basis. Reference Quality Medical Publishing when making your reservation. All reservations must be received no later than Tuesday, September 14, 2007. Clayton The Ritz-Carlton, a luxury hotel, is conveniently located in Clayton, an upscale suburb of St. Louis. Clayton is home to more than 70 fine shops and art galleries in addition to an array of elegant American and ethnic restaurants; most are within walking distance of the hotel.