Like all science, kila kitu ni trial and error. Ndo maana hakuna kipimo 100% conclusive na hakuna dawa 100% effective. Na kila siku tunagundua makosa mapya na mafanikio mapya. Medical field has costed people their lives as much as saved a wholesome lot! Angalia ripoti tu za xray na ultrasound zina 'disclaimer', seuze watu!