The evidence for the effectiveness of B serrata extracts is encouraging but not compelling
OBJECTIVE To assess evidence from r and omised clinical trials about the effectiveness of  extracts of Boswellia serrata ( frankincense ) .
Design, Organization and Management of a Controlled Population Screening Study for Detection of Colorectal Neoplasia: Attendance Rates in the NORCCAP Study (Norwegian Colorectal Cancer Prevention)
Background : In the past three decades , the incidence of colorectal cancer ( CRC ) in Norway has doubled , surpassing all other Nordic countries for both men and women to become the most frequently diagnosed cancer . A small-scale , r and omized study on flexible sigmoidoscopy ( FS ) screening in Telemark , Norway , has shown a reduction in accumulated CRC incidence after 13 years . The aim of our study was to evaluate the effect on CRC mortality and morbidity by screen detection of CRC and removal of precursor lesions ( polypectomy ) , and to test out the management and organization mimicking a countrywide screening service . A total of 13,823 men and women ( 1:1 ) , age 55 - 64 years , were drawn r and omly from the population registries in Oslo ( urban ) and the county of Telemark ( mixed urban and rural ) and invited to have a screening examination . The rest of the relevant age cohorts constituted the control groups . In the screening group , 535 individuals were excluded according to exclusion criteria , rendering 13,288 individuals eligible for screening examination . Methods : A once only screening model was used . In the screening group , individuals were r and omized to have a once only FS or a combination of FS and faecal occult blood test ( FOBT ) . Results : The overall attendance rate was 8,849 out of 13,288 ( 67 % ) ; 73 % in Telemark and 60 % in Oslo . Attendance for FS only was 68 % and 65 % for combined FS&FOBT . Conclusions : The present FS/FS&FOBT screening study obtained a high acceptance rate for both screening modalities . The attendance rate was stable throughout the trial , suggesting an acceptable model for management of future countrywide screening
The evidence for the effectiveness of B serrata extracts is encouraging but not compelling
OBJECTIVE To assess evidence from r and omised clinical trials about the effectiveness of  extracts of Boswellia serrata ( frankincense ) .