Refsum DiseaseIn Rowland's Merritt's Textbk of Neurology, Lea & Febiger, Phila, 8thEd, p. 509, Menkes,J.H., 1989
Myotonic DystrophyIn Myology, Engel & Franzini-Armstrong, McGraw-Hill, Inc, New York V2, Ch 43, P1192, Harper,P.S.&Rudel,R., 1994