3249944 pNPC p-nitrophenyl-beta-d-cellobioside 22 3249949 PNPC p-nitrophenylcaprylate 7 3249948 pNPC primary nasopharyngeal carcinoma 4 3249947 pNPC primary NPC 3 3249943 pNPC p-nitrophenyl esters of caproate 1 3249945 pNPC parameters, Km, Vmax and kcat/Km for 4-Nitrophenyl caprylate 1 3249946 pNPC primarily diagnosed NPC 1