Nikus, K. C., Eskola, M. J., Virtanen, V. K., Vikman, S., Niemelä, K. O., Huhtala, H., & Sclarovsky, S. (2004). ST‐Depression with Negative T Waves in Leads V(4)–V(5)—A Marker of Severe Coronary Artery Disease in Non‐ST Elevation Acute Coronary Syndrome: A Prospective Study of Angina at Rest, with Troponin, Clinical, Electrocardiographic, and Angiographic Correlation. Ann Noninvasive Electrocardiol.

Nikus, Kjell C., Markku J. Eskola, Vesa K. Virtanen, Saila Vikman, Kari O. Niemelä, Heini Huhtala, και Samuel Sclarovsky. "ST‐Depression With Negative T Waves in Leads V(4)–V(5)—A Marker of Severe Coronary Artery Disease in Non‐ST Elevation Acute Coronary Syndrome: A Prospective Study of Angina At Rest, With Troponin, Clinical, Electrocardiographic, and Angiographic Correlation." Ann Noninvasive Electrocardiol 2004.

Nikus, Kjell C., et al. "ST‐Depression With Negative T Waves in Leads V(4)–V(5)—A Marker of Severe Coronary Artery Disease in Non‐ST Elevation Acute Coronary Syndrome: A Prospective Study of Angina At Rest, With Troponin, Clinical, Electrocardiographic, and Angiographic Correlation." Ann Noninvasive Electrocardiol 2004.