A Phase I, open-label, dose escalation study of MGA271 in combination with ipilimumab in patients with B7-H3-expressing melanoma, squamous cell cancer of the head and neck or non-small cell lung cancer ========================================================================================================================================================================================================= * Walter Urba * Bartosz Chmielowski * Deryk Loo * Jan Baughman * Francine Chen * Paul Moore * Ezio Bonvini * James Vasselli * Jon Wigginton * Naiyer Rizvi