APA
Huysmans, H. (1993). In response to: Grunkemeier GL, Starr A. Alternatives to randomization in surgical studies. The Journal Of Heart Valve Disease, 2(1), 122-3.
MLA
Huysmans, H. "In response to: Grunkemeier GL, Starr A. Alternatives to randomization in surgical studies." The Journal Of Heart Valve Disease 2.1 (1993): 122-3.
Chicago
Huysmans, H. "In response to: Grunkemeier GL, Starr A. Alternatives to randomization in surgical studies." The Journal Of Heart Valve Disease 2, no. 1 (1993): 122-3.
Harvard
Huysmans, H. (1993) 'In response to: Grunkemeier GL, Starr A. Alternatives to randomization in surgical studies' The Journal Of Heart Valve Disease 2(1), pp. 122-3.
Vancouver
Huysmans H. In response to: Grunkemeier GL, Starr A. Alternatives to randomization in surgical studies. The Journal Of Heart Valve Disease. 1993 ;2(1):122-3.