Figure 1From: Long-term survival rates of laryngeal cancer patients treated by radiation and surgery, radiation alone, and surgery alone : studied by lognormal and Kaplan-Meier survival methodsCause-specific survival for all patients with laryngeal cancer treated by radiation and surgery estimated by the lognormal model at 1978 versus actuarial survival calculated by the Kaplan-Meier method at 1999.Back to article page