. "0"^^ . . . "09374886-n"^^ . . . "0"^^ . "a constituent (proton or neutron) of an atomic nucleus"@en-us . . "108787516"@en-us . . . . "nucleon"@en-us . . "109374886"^^ . "a constituent (proton or neutron) of an atomic nucleus"@en-us . "nucleon"^^ . . .