Hayes AF, Montoya AK, Rockwood NJ. The analysis of mechanisms and their contingencies: PROCESS versus structural equation modeling. AMJ. 2017 Feb;25(1):76-81. doi: 10.1016/j.ausmj.2017.02.001
Palka P, Lange A, Wright RA, Starkey IR, Fleming AD, Bouki KP, Sutherland GR, Shaw TRD, Fox KAA. Myocardial velocity gradient measured throughout the cardiac cycle in dilated cardiomyopathy hearts — a potential new parameter of systolic and diastolic myocardial function by Doppler myocardial imaging. European journal of ultrasound. 1997 Jun 1;5(3):141-54. doi: 10.1016/S0929-8266(97)00014-1
Hoskins PR, Fleming A, Stonebridge PA, Allan PL, Cameron D. Scan-plane vector maps and secondary flow motions in arteries. European journal of ultrasound. 1994 Apr 1;1(2):159-69.