TY - RPRT TI - Microcount method for petrolatum-based topical ointments containing waxes. AU - K Tsuji AU - J H Robertson PY - 1970 DO - 10.1128/am.20.5.802-804.1970 UR - https://pubmed.ncbi.nlm.nih.gov/4991925/ ID - 4991925 ER -