2985245 LPBE liquid-phase blocking ELISA 38 2985248 LPBe lateral parabrachial subnucleus 11 2985243 lPBE linearized Poisson-Boltzmann equation 4 2985241 LPBE liquid-phase blocking sandwich ELISA 4 2985242 LPBE linearized PBE 1 2985244 LPBE liquid phase blocking enzyme immunoassay 1 2985247 LPBE Liquid-phase blocking enzyme-linked immunosorbent assay 1 2985246 LPBE livestock and poultry breeding enterprise 1