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			        		Inari M CICCONE
			        		
			        		
			        		
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			        		Elaine Mf COSTA
			        		
			        		
			        		
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			        		Juliana R PARIZ
			        		
			        		
			        		
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			        		Thiago A TEIXEIRA
			        		
			        		
			        		
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			        		Joel R DREVET
			        		
			        		
			        		
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			        		Parviz GHARAGOZLOO
			        		
			        		
			        		
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			        		Robert J AITKEN
			        		
			        		
			        		
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			        		Jorge HALLAK
			        		
			        		
			        		
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			        		Author Information
			        		
 - Publication Type:Journal Article
 - Keywords: male infertility; semen quality; sexual hormones; sperm motility; testosterone; vitamin D deficiency
 - From: Asian Journal of Andrology 2021;23(1):52-58
 - CountryChina
 - Language:English
 - Abstract: The present study aimed to evaluate the influence of serum vitamin D levels on semen quality and testosterone levels. This is a cross-sectional study conducted at Androscience, Science and Innovation Center in Andrology and High-Complex Clinical and Andrology Laboratory in Sao Paulo, Brazil, with 508 male patients, aged 18-60 years, from 2007 to 2017. Seminal parameters and serum sexual hormones were correlated with serum vitamin D concentrations in 260 men selected by strict selection criteria. Patients were divided into normozoospermic group (NZG, n = 124) and a group with seminal abnormalities (SAG, n = 136). Evaluation included complete physical examination, past medical history, habits and lifestyle factors, two complete seminal analysis with sperm functional tests, serum levels of 25-hydroxy-vitamin D
 
            
