TY - RPRT TI - Cortisone influences developing collaterals. 1. A morphologic study. AU - J Schaper AU - M Borgers AU - R Xhonneux AU - W Schaper PY - 1973 DO - 10.1007/bf00548700 UR - https://pubmed.ncbi.nlm.nih.gov/4204209/ ID - 4204209 ER -