Gault, RH (1907). "A history of the questionnaire method of research in psychology". Research in Psychology14 (3): 366–383. doi:10.1080/08919402.1907.10532551.
"High maternal vitamin E intake by diet or supplements is associated with congenital heart defects in the offspring". BJOG116 (3): 416–23. February 2009. doi:10.1111/j.1471-0528.2008.01957.x. பப்மெட்:19187374.
"High maternal vitamin E intake by diet or supplements is associated with congenital heart defects in the offspring". BJOG116 (3): 416–23. February 2009. doi:10.1111/j.1471-0528.2008.01957.x. பப்மெட்:19187374.