{
    "PMID": "1065904",
    "TI": "Morphine-like peptides in mammalian brain: isolation, structure elucidation, and interactions with the opiate receptor.",
    "JT": "Proceedings of the National Academy of Sciences of the United States of America",
    "BTI": "",
    "DP": "1976-07",
    "AU": "Simantov R, Snyder S H"
}