TY - RPRT TI - In vitro diffusion cell design and validation. I. A stability-indicating high-performance liquid chromatographic assay for betamethasone 17-valerate in purified isopropyl myristate receptor phase. AU - E W Smith AU - J M Haigh PY - 1989 DO - 10.1023/a:1015995818613 UR - https://pubmed.ncbi.nlm.nih.gov/2748536/ ID - 2748536 ER -