Efficacy of compatible acupoints and single acupoint versus sham acupuncture for functional dyspepsia: study protocol for a randomized controlled trial oleh Le Guo, Xin Huang, Li-Juan Ha, Jing-Zhou Zhang, Jia Mi, Ping-Hui Sun, Xi-Ying Han, Ying Wang, Jing-Lin Hu, Fu-Chun Wang, Tie Li