The 3D combined approach matrix : an improved tool for setting priorities in research for health / by Abdul Ghaffar, Tea Collins, Stephen A. Matlin, Sylvie Olifson. - Geneva : Global Forum for Health Research, 2009. - 45 p. : tab. ; 30 cm.см.. - Bibliogr.: p. 43-45. - ISBN 978-2-940401-19-2[MFN: 28116]