Characteristics and outcomes of patients with advanced sarcoma enrolled in early phase immunotherapy trials =========================================================================================================== * Roman Groisberg * David S. Hong * Amini Behrang * Kenneth Hess * Filip Janku * Sarina Piha-Paul * Aung Naing * Siqing Fu * Robert Benjamin * Shreyaskumar Patel * Neeta Somaiah * Anthony Conley * Funda Meric-Bernstam * Vivek Subbiah