dr. sperling. we appreciate it. reesa sperling with center for al and treatment at brigham and women's hospital. >>> coming up tonight, the once hot art market. is it suddenly showing signs of cooling off? >>> here's a look at what to watch for tomorrow. it's the deadline for the potential merger between sab miller and anheuser-busch. they have to have a definitive agreement hammered out. >>> apple's latest product, the ipad pro will be available to billions were spent in alibaba's singles day. that's what to watch for for wednesday. >>> well, a painting that never sold at auction before did last night and it went for a near. the piece reclining nude was done by the italian artist mow dig leahny. others are not fetching top dollar, and as robert frank explains that has some wondering if hot market is starting to turn. >> the art market is experiencing extreme highs and extreme lows. sometimes on the same night. at a christie's sale last night, this painting sold for more than $170 million. making it the second most e