Effects of Nifedipine on Pollen Germination, Pollen Tube Growth and Division of Generative Nucleus in Nicotiana tabacum Effects of Astragalus membranaceus on atrial dynamics and ANP secretion Effect of Jingui Shenqi pill combined with nifedipine for the treatment of elderly hypertensive patients with spleen-kidney Yang deficiency syndrome Determination of hydrochlorothiazide, prazosin hydrochloride, promethazine hydrochloride, reserpine, and nifedipine illegally added into Qingnao Jiangya Tablets by HPLC method Effect of Jimaitong tablt combined with nifedipine on blood-pressure andmechanisms investigation in spontaneously hypertensive rats