Fig. 2From: Prevalence and characteristics of mouse mammary tumor virus-like virus associated breast cancer in ChinaMMTV genome and the position of the primers. A. The outer primers used in the primary PCR were J948-env-F and J950-env-R. The inner primers used in the secondary PCR were J948-env-F and J1011-env-R1. All the primers were shown by arrows. B. DNA sequence of the MMTV-like env PCR productBack to article page