By a nice piece of Google serendipity I came across a pdf of Height, Leg Length, and Cancer Risk: A Systematic Review which was published in Epidemiologic Reviews in 2001.
Then I came across Simpsons Paradox, Lord's Paradox, and Suppression Effects are the same phenomenon - the reversal paradox in David Gunnell’s publications list.
So thats my weekend reading sorted out.
