Lammle, Todd, Robb, Donald (4) Willson, Rob (the Priory Clinic), Branch, Rhena (the Priory Clinic) (2) Messier, Ric (2) Pearl, Judea (university Of California, Glymour, Madelyn (carnegie Mellon University, Jewell, Nicholas P. (university Of California (1) Saratovsky, Kari Dunn, Feldmann, Derrick (1)