TY - RPRT TI - A simple, new method for testing impurities in cephalexin. AU - A Dávid AU - T E Takácsy PY - 1975 DO - 10.1111/j.2042-7158.1975.tb09399.x UR - https://pubmed.ncbi.nlm.nih.gov/241792/ ID - 241792 ER -