Salloum RM, Jaskowiak NT, Mauceri HJ, Seetharam S, Beckett MA, Koons AM, Hari DM, Gupta VK, Reimer C, Kalluri R, Posner MC, Hellman S, Kufe DW, Weichselbaum RR. NM-3, an isocoumarin, increases the antitumor effects of radiotherapy without toxicity. Cancer Res. 2000 Dec 15; 60(24):6958-63.