TY - RPRT TI - Minimal Perthes' disease. AU - J A Herring AU - M A Lundeen AU - D R Wenger PY - 1980 DO - 10.1302/0301-620x.62b1.7351431 UR - https://pubmed.ncbi.nlm.nih.gov/7351431/ ID - 7351431 ER -