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