Factors associated with vitamin D deficiency in a multicultural inflammatory bowel disease cohort
Sukhdev Chatu, Vivek Chhaya, Rosamund Holmes, Penny Neild, Jin-Yong Kang, Richard C Pollok, Andrew Poullis
Frontline Gastroenterology Jan 2013, 4 (1) 51-56; DOI: 10.1136/flgastro-2012-100231