The Effects of Data Imputation on Covariance and Inverse Covariance Matrix Estimation von Tuan L. Vo, Quan Huu Do, Thu Nguyen, Pal Halvorsen, Michael A. Riegler, Binh T. Nguyen

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Risk factors for human infection with avian influenza A H5N1, Vietnam, 2004. von Dinh, P, Long, H, Tien, N, Hien, N, Mai, L, Phong, L, Tuan, L, Van Tan, H, Nguyen, N, Van Tu, P, Phuong, N