3291455 PNNP perinatal nurse practitioner 3 3291453 PNNP parallel neural network proportional 1 3291458 PNNP phosphine, namely, 1,5-bis(p-tolyl)-3,7-bis(pyridin-2-yl)-1,5-diaza-3,7-diphosphacyclooctane 1 3291457 PNNP physics-informed noise neural proxy 1 3291456 PNNP pincer ligand, the dipyrrolyl-diphosphine ligand 1 3291452 PNNP PNNP-ligated iridium complexes 1 3291451 PNNP Polymer-Nanoparticle-Nanoparticle/Polymer 1 3291454 PNNP Proportional Controllers 1