Quanto a interferência do observador
{"Image DocumentName": "Quanto a interfer\u00eancia do observador", "Image ImageDescription": "Observacionais. Longitudinais. Coorte. Caso-controle. Transversal. Experimentais.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}