Reply to Dickhoff et al. from authors of 'Induction chemoradiotherapy versus chemotherapy alone for superior sulcus lung cancer'. (October 2018) - Robinson, Lary A.; Tanvetyanon, Tawee; Grubbs, Deanna; Antonia, Scott; Creelan, Ben; Fontaine, Jacques; Toloza, Eric; Keenan, Robert; Dilling, Thomas; Stevens, Craig W.; Sommers, K. Eric; Vrionis, Frank