Yiqi Du

BACKGROUND AND AIM: Recently, Gastroesophageal Reflux Disease Questionnaire (GerdQ) has been developed for diagnosis of GERD. However, no study investigated its value in real-world practice. This study aimed to investigate whether GerdQ can be used for diagnosis of GERD in China.

METHODS: A national multicenter survey was undertaken; all patients who underwent first diagnostic upper endoscopy for upper gastrointestinal (GI) symptoms were included. Data including the gender, age, ...

BACKGROUND: Psoriasis vulgaris is a chronic skin condition affecting patients' quality of life. Long-term use of conventional therapy increases risk of unwanted side effects. Compound glycyrrhizin in conjunction with conventional therapy has been used in clinical practice, but the evidence for such practice has not been evaluated systematically.

OBJECTIVE: This review aims to evaluate the efficacy and safety of compound glycyrrhizin in combination with conventional therapy for psoriasis ...

In order to decrease the effects of noise on the signal feature extraction and improve the spectrum sensing performance of cognitive radio system. This paper proposes an improved cooperative spectrum sensing (CSS) method based on the principal component analysis (PCA) and K-medoids clustering. Firstly, principal component analysis extracts signal principal components by applying multiple antenna systems, then the corresponding signal features are extracted through the signal principal ...