PCDq: human protein complex database with quality index which summarizes different levels of evidences of protein complexes predicted from H-Invitational protein-protein interactions integrative dataset. - Shingo Kikugawa; Kensaku Nishikata; Katsuhiko Murakami; Yoshiharu Sato; Mami Suzuki; Md. Altaf-Ul-Amin; Shigehiko Kanaya; Tadashi Imanishi (BMC Syst. Biol., 2012)