TY - BOOK AU - Marwa Kamal Hussien Ali AU - Dina Ahmed Mehaney , AU - Mona Mohsen Mahmoud , AU - Noussa Ragab Mohamed , TI - Vitamin D status in children under five years with severe pneumonia / PY - 2013/// CY - Cairo : PB - Marwa Kamal Hussien Ali , KW - Pneumonia KW - Severe KW - Vitamin D N1 - Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Pediatrics; Issued also as CD N2 - Pneumonia is a common illness affecting approximately 450 million people a year and occurring in all parts of the world (Ruuskanen et al., 2011). It is a major cause of death among all age groups resulting in 4 million deaths (7% of the world's total death) yearly (Kabra et al., 2010). Vitamin D is a steroid hormone that has been known for its important role in regulating body levels of calcium and phosphorus, and in mineralization of bone UR - http://172.23.153.220/th.pdf ER -