| web | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4006208/ | 
| author | Rajendra Kumar Gupta, Devanand Gupta | 
| publication | Ethiop J Health Sci | 
| date | 2014-04-01 | 
| web | Rajendra Kumar Gupta, Devanand... | Ethiop J Health Sci | 2014-04-01 | 
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