UniHI 7: an enhanced database for retrieval and interactive analysis of human molecular interaction networks. - Ravi Kiran Reddy Kalathur; José Pedro Pinto; Miguel A. Hernández-Prieto; Rui S. R. Machado; Dulce Almeida; Gautam Chaurasia; Matthias E. Futschik (Nucleic Acids Res., 2014)