Design of the HIV Prevention Trials Network (HPTN) Protocol 054: A cluster randomized crossover trial to evaluate combined access to Nevirapine in developing countries


Hughes JP, Goldenberg RL, Wilfert C, Valentine M, Mwinga K, Guay L, Mmiro F, Stringer JSA


(March 18, 2003). U. Washington Biostatistics Working Paper Series. Working Paper 195.

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