APA

Sempértegui F., Estrella B., Camaniero V., Betancourt V., Izurieta R., Ortiz W., Fiallo E., Troya S., Rodríguez A. & Griffiths J. K. (19990712). The beneficial effects of weekly low-dose vitamin A supplementation on acute lower respiratory infections and diarrhea in Ecuadorian children. : Pediatrics.

Chicago

Sempértegui F, Estrella B, Camaniero V, Betancourt V, Izurieta R, Ortiz W, Fiallo E, Troya S, Rodríguez A and Griffiths J K. 19990712. The beneficial effects of weekly low-dose vitamin A supplementation on acute lower respiratory infections and diarrhea in Ecuadorian children. : Pediatrics.

Harvard

Sempértegui F., Estrella B., Camaniero V., Betancourt V., Izurieta R., Ortiz W., Fiallo E., Troya S., Rodríguez A. and Griffiths J. K. (19990712). The beneficial effects of weekly low-dose vitamin A supplementation on acute lower respiratory infections and diarrhea in Ecuadorian children. : Pediatrics.

MLA

Sempértegui F, Estrella B, Camaniero V, Betancourt V, Izurieta R, Ortiz W, Fiallo E, Troya S, Rodríguez A and Griffiths J K. The beneficial effects of weekly low-dose vitamin A supplementation on acute lower respiratory infections and diarrhea in Ecuadorian children. : Pediatrics. 19990712.