APA

Negi Vir Singh, University of Delhi. Faculty of Medical Sciences. Department of Medicine, Dr Richa Dewan Supervisor & University of Delhi. Faculty of Medical Sciences. Department of Medicine. (1990). To study the prevalence to gallstones in the first degree relatives of patients with cholelithiasis and to determine the influence of different risk factors contributing to gallstone formation. : .

Chicago

Negi Vir Singh, University of Delhi. Faculty of Medical Sciences. Department of Medicine, Dr Richa Dewan Supervisor and University of Delhi. Faculty of Medical Sciences. Department of Medicine. 1990. To study the prevalence to gallstones in the first degree relatives of patients with cholelithiasis and to determine the influence of different risk factors contributing to gallstone formation. : .

Harvard

Negi Vir Singh, University of Delhi. Faculty of Medical Sciences. Department of Medicine, Dr Richa Dewan Supervisor and University of Delhi. Faculty of Medical Sciences. Department of Medicine. (1990). To study the prevalence to gallstones in the first degree relatives of patients with cholelithiasis and to determine the influence of different risk factors contributing to gallstone formation. : .

MLA

Negi Vir Singh, University of Delhi. Faculty of Medical Sciences. Department of Medicine, Dr Richa Dewan Supervisor and University of Delhi. Faculty of Medical Sciences. Department of Medicine. To study the prevalence to gallstones in the first degree relatives of patients with cholelithiasis and to determine the influence of different risk factors contributing to gallstone formation. : . 1990.