Left atrial spontaneous echo contrast in mitral valve disease: An indicator for an increased thromboembolic riskW.G. Daniel, P. R. Lichtlen, B. Nonnast-Daniel et al.|Journal of the American College of Cardiology|1988Cited by 504
Comparison of transthoracic and transesophageal echocardiography for detection of abnormalities of prosthetic and bioprosthetic valves in the mitral and aortic positionsWerner G. Daniel, Randolph P. Martin, Andreas Mügge et al.|The American Journal of Cardiology|1993Cited by 308
Anatomical progression of coronary artery disease in humans as seen by prospective, repeated, quantitated coronary angiography. Relation to clinical events and risk factors. The INTACT Study Group.P. R. Lichtlen, W. Rafflenbeul, Peter Nikutta et al.|Circulation|1992Cited by 119
Retardation of coronary artery disease in humans by the calcium-channel blocker nifedipine: Results of the INTACT study (International Nifedipine Trial on Antiatherosclerotic Therapy)P. R. Lichtlen, Jaap W. Deckers, Peter Nikutta et al.|Cardiovascular Drugs and Therapy|1990Cited by 93