apo 388Tips for Efficient and Timely Delivery to APO Addresses. Implementing best practices can enhance the efficiency and reliability of your APO shipments. Double-checkcombination of alleles at rs429358 and rs7412 variants, an individual could possess one of six common APOE genotypes (e4e4, e4e3, e4e2,e3e3, e2e3 and e2e2, appendix p 6 table