OMICS International https://www.omicsonline.org/ OMICS International is a scientific organization that drives the progress of research through open access journals and organizes international conferences, The best in science news, commentary, and research. https://www.omicsonline.org/ArchiveMedchem/currentissue-medicinal-chemistry-open-access.php Medicinal Chemistry Volume 8, Issue 5 https://www.omicsonline.org/open-access/sildenafil-viagratm-synthesis-step-by-step-and-its-pharmaceutical-importance-in-diabetic-patients-with-erectile-dysfunction-2161-0444-1000505-101932.html Sildenafil ViagrasupTMsup Synthesis Step by Step and its Pharmaceutical Importance in Diabetic Patients with Erectile Dysfunction Mohammed Abdalla Hussein , Yasser Omar Mosaad and Naglaa Abd El Khalik Gobba https://www.omicsonline.org/open-access/taste-receptor-tas2r5-and-tas1r3-is-expressed-in-sublingual-gland-2161-0444-1000504-101637.html Taste Receptor Tas2r5 and Tas1r3 is Expressed in Sublingual Gland Feng Li , Bowen Niu and Mengmin Zhu https://www.omicsonline.org/open-access/stem-cell-in-lingual-epithelia-and-papillae-2161-0444-1000503-101636.html Stem Cell in Lingual Epithelia and Papillae Feng Li