Mahmoud S, Staley J, Taylor J, Bogden A, Moreau JP, Coy D, Avis I, Cuttitta F, Mulshine JL, Moody TW. [Psi 13,14] bombesin analogues inhibit growth of small cell lung cancerin vitro and in vivo. Cancer Res. 1991 Apr 01; 51(7):1798-802.