Some issues to notice in the research and quality evaluation of external preparations of traditional Chinese medicine Study on index for formulation optimization of sustained or controlled released dosage forms A review of recent ten-year study on α-asarone Problems and solutions during development of sustained-or controlled-release drug delivery systems of Chinese materia medica Research progress on advanced pharmaceutical preparation and new dosage forms of dihydromyricelin Breviscapine listed on progress of new varieties and dosage form research Cataplasma of Traditional Chinese Medicine