preferred_name: Conversion of C4 into C4a and C4b (Rattus norvegicus)
preferred_name_lc: conversion of c4 into c4a and c4b (rattus norvegicus)
label: Conversion of C4 into C4a and C4b (Rattus norvegicus)
label_lc: conversion of c4 into c4a and c4b (rattus norvegicus)