Empirical analysis of invalid patents of Chinese materia medica Quality analysis of Guizhi Fuling capsule before and after application of in-process quality control in pharmaceutical production The technological innovation strategy for quality control of Chinese medicine based on Big Data Batch release control of Gardenia jasminoides intermediate purification process based on statistical process control and near-infrared spectroscopy technology Real-time release control of alcohol precipitation about Artemisiae Annuae Herba and Lonicerae Flos based on statistical process control technology