Oral Amoxicillin versus Benzyl Penicillin for Severe Pneumonia among Kenyan Children: A Pragmatic Randomized Controlled Non-inferiority Trial. by Agweyu, A, Gathara, D, Oliwa, J, Muinga, N, Edwards, T, Allen, E, Maleche-Obimbo, E, English, M, On behalf of the Severe Pneumonia Study Group