TY - GEN AU - Curtis,T TI - Possible origins of AIDS SN - 0036-8075 PY - 1992///0706 KW - Acquired Immunodeficiency Syndrome KW - etiology KW - Animals KW - HIV KW - Haplorhini KW - Humans KW - Poliovirus Vaccine, Inactivated KW - adverse effects KW - Simian Immunodeficiency Virus N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1126/science.1598561 ER -