2806226 TNF-R55 p55-TNF receptor 3 2806232 TNF-R55 tumor necrosis factor receptor 55 3 2806229 TNF-R55 TNF receptor 55/60 1 2806228 TNF-R55 TNF receptor p55 1 2806227 TNF-R55 TNF-R p55 1 2806231 TNF-R55 two different receptors of 55 1 2806230 TNF-R55 two receptors, one of 55 kD 1