Tsao YK, Wei CF, Robberson DL, Gotto AM Jr, Chan L (1986). "Isolation and characterization of the human apolipoprotein A-II gene. Electron microscopic analysis of RNA:DNA hybrids, nucleotide sequence, identification of a polymorphic MspI site, and general structural organization of apolipoprotein genes". J Biol Chem260 (28): 15222–31. PMID2415515.