BACKGROUND To carry out a systematic review of the birth prevalence of cleft lip with or without cleft palate (CLP) and cleft palate (CP) in Africa based on available published data. METHOD Using the Cochrane search strategy and the following keywords words "cleft palate", "prevalence", "incidence", "cleft lip" and "Africa" to screen Ovid Medline {1966 to March 2007), Cinahl {1982-March 2007}...

We are honored to pay tribute to Johannes (Hans) J. Duistermaat (December 20, 1942–March 19, 2010), a world leading figure in geometric analysis and one of the foremost Dutch mathematicians of the twentieth century, by presenting a collection of contributions by someofHans’s colleagues, collaborators, and students. Duistermaat’s first striking contribution was his article “Fourier integral oper...

We are honored to pay tribute to Johannes (Hans) J. Duistermaat (December 20, 1942–March 19, 2010), a world leading figure in geometric analysis and one of the foremost Dutch mathematicians of the twentieth century, by presenting a collection of contributions by someofHans’s colleagues, collaborators, and students. Duistermaat’s first striking contribution was his article “Fourier integral oper...