title: Erratum to: the WHO ultrasonography protocol for assessing morbidity due to Schistosoma haematobium. Acceptance and evolution over 14 years. Systematic review.
authors: Hôpital Saint Jean de Dieu, Tanguieta, Benin.
authors: Robert
authors: R
authors: Akpata
authors: Andreas
authors: A
authors: Neumayr
authors: Martha C
authors: MC
authors: Holtfreter
authors: Ingela
authors: I
authors: Krantz
authors: Daman D
authors: DD
authors: Singh
authors: Rodrigo
authors: R
authors: Mota
authors: Susanne
authors: S
authors: Walter
authors: Christoph
authors: C
authors: Hatz
authors: Joachim
authors: J
authors: Richter