Cite
The effect of pyridoxal-5-phosphate on porphyrin excretion and serum iron level in porphyria cutanea tarda.
MLA
Petres, J., et al. “The Effect of Pyridoxal-5-Phosphate on Porphyrin Excretion and Serum Iron Level in Porphyria Cutanea Tarda.” German Medical Monthly, vol. 13, no. 2, Feb. 1968, pp. 73–76. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=4871194&authtype=sso&custid=ns315887.
APA
Petres, J., Schröder, K., Consbruch, U., & Ladner, H. A. (1968). The effect of pyridoxal-5-phosphate on porphyrin excretion and serum iron level in porphyria cutanea tarda. German Medical Monthly, 13(2), 73–76.
Chicago
Petres, J, K Schröder, U Consbruch, and H A Ladner. 1968. “The Effect of Pyridoxal-5-Phosphate on Porphyrin Excretion and Serum Iron Level in Porphyria Cutanea Tarda.” German Medical Monthly 13 (2): 73–76. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=4871194&authtype=sso&custid=ns315887.