Sentence examples for The reason is unknown from inspiring English sources
The reason is unknown, but many scientists believe there is a trigger, perhaps a virus, that starts the process.
The reason is unknown, but she thought she might have touched guano-soiled rocks and then covered her nose and mouth with her hands because the cave smelled so bad.
The reason is unknown, but a recently arrived parasite from South America may have wiped out the imported fire ants, he says.
The reason is unknown, although scholars think it is probably because they no longer had sexual intercourse.
The reason is unknown, and should be further investigated.
The reason is unknown, and future studies with other combinations will be needed.
Regarding the known reasons for not attending clinic, (in 39% of the cases the reason was unknown) the most frequent one was that the patient was very well and did not feel beneficial to attend (12 patients).
Furthermore, one patient did not receive the intervention due to logistical problems and for one person the reason was unknown.
In the remaining three cases, extensive local disease was the reason not to perform surgery in 2 cases and in 1 case the reason was unknown.
Reasons for not undergoing colonoscopy were refusal by the individual (43.1%) or undergoing another FOBT instead of colonoscopy (25.5%); the reason was unknown for 31.4%.
The logistic regression analysis also determined higher BMI as an independent beneficial factor for visual improvement after IVR, although the reason was unknown.
