TY - GEN AU - Hoffman,M TI - Roche eases PCR restrictions SN - 0036-8075 PY - 1992///0311 KW - Animals KW - DNA Fingerprinting KW - methods KW - Drug Industry KW - Humans KW - Mice KW - Patents as Topic KW - Paternity KW - Polymerase Chain Reaction KW - United States N1 - Publication Type: News UR - https://doi.org/10.1126/science.1736354 ER -