2006 नि गेजेरजों माय' क्लिनिकजों मावजानाय सिरिबांगोनां थनलाइ नागिरनाया , लोगोसेयै गोबां थासारिनि बिजिरनाय जौसेसो लिरबिदांफोर , एस्थ्मा आरो गोजौ हांलाग्रा तन्ट्र गाग्लोबनाया जायखि जाया गुबुन फाहामथायनि जेबो मोजांखौ दिन्थिबायाखौ , आरो प्लाचिबनि रुजुनायाव जेबो गोरोबै गैया ।
Systematic literature searches conducted by the Mayo Clinic through 2006 involving hundreds of articles studying multiple conditions including asthma and upper respiratory tract infection showed no effectiveness of any alternative treatments and no difference compared with placebo .