What Can You Deduce From The Brushstrokes Of The Masters?

Now they think they can perceive certain medical conditions in the brushstrokes of the master painters. A clumsy strength in the brushstroke here, an insufficient sweep there, a tremble elsewhere.  

Of course they lag far behind some of us. My people have long ago discerned far more than this in the works of the Greats. Ah, well do I remember the days when we lunched at The D'Orsay: Sheridan (obstetrics and gynaecology) waving an arm at a late Morisot - 'half way through the second trimester'. Our dentist friend pausing before a Hockney with a lot of blue in it - 'upper right four occlusal'. Barry who sells cars identified Renoir as a Citroen man, I recall. And Cyril, that's the one who owns a confectioner's, dragged us over to a Rembrandt and told us 'There's a licorice-allsorts buying fellow' or he was a Dutchman.