共 23 条
[13]
Mbah N, 2007, West Afr J Med, V26, P288
[14]
Mebula JB, 2009, BMC RES NOTES, V5, P585, DOI [10.1186/1756-0500-5-585, DOI 10.1186/1756-0500-5-585]
[19]
Saeed BBA, 2009, YEMEN J MED SCI, V1, P1
[20]
Sangwan Mukesh., 2013, Open Journal of Epidemiology, V18 May 3, P135