TY - RPRT TI - Repeated injection of prostaglandin E2 in rat paws induces chronic swelling and a marked decrease in pain threshold. AU - A L Willis AU - M Cornelsen PY - 1973 DO - 10.1016/0090-6980(73)90073-7 UR - https://pubmed.ncbi.nlm.nih.gov/4729578/ ID - 4729578 ER -