TY - RPRT TI - Postnatal changes in rat ventricular function. AU - S F Hopkins AU - E P McCutcheon AU - D R Wekstein PY - 1973 DO - 10.1161/01.res.32.6.685 UR - https://pubmed.ncbi.nlm.nih.gov/4715191/ ID - 4715191 ER -