Stomach VolvulusIntestinal VolvulusOnchocerca volvulusGastrointestinal TractStomachOnchocerciasisDigestive SystemOnchocercaSimuliidaeDigestive System Physiological PhenomenaIvermectinIntestinal ObstructionCecal DiseasesOnchocerciasis, OcularStomach NeoplasmsUpper Gastrointestinal TractGastrointestinal NeoplasmsMicrofilariaStomach DiseasesColon, SigmoidIntestinesLarvaGastrointestinal DiseasesAntigens, HelminthDigestive System AbnormalitiesGastric MucosaLower Gastrointestinal TractIntestine, SmallColonic DiseasesFilaricidesIntestinal MucosaCecumStomach UlcerMansonelliasisColonDNA, HelminthAntibodies, HelminthIntestine, LargeTorsion AbnormalityDuodenumUrinary Tract InfectionsGastrointestinal MotilityMolecular Sequence Data