1. To our readers

   • Bernhard Lewerich

   Announcement Pages: 511 - 511

2. Significance of adaptation mechanisms in adriamycin induced congestive heart failure

   • P. K. Singal
   • N. Siveski-Iliskovic
   • M. Sahai

   Editorial Pages: 512 - 518

3. Myocardial contractile protein ATPase activities in adrenalectomized and thyroidectomized rats

   • R. D. Stith
   • Y. S. Reddy

   Original Contributions Pages: 519 - 526

4. Preconditioning of heart by repeated stunning: Adaptive modification of myocardial lipid membrane

   • R. M. Jones
   • M. Bagchi
   • D. K. Das

   Original Contributions Pages: 527 - 535

5. Does the antiarrhythmic effect of DMPO originate from its oxygen radical trapping property or the structure of the molecule itself?

   • A. Tosaki
   • R. F. Haseloff
   • I. E. Blasig

   Original Contributions Pages: 536 - 547

6. Predicting functional recovery from ischemia in the rat myocardium

   • F. M. H. Jeffrey
   • C. J. Storey
   • C. R. Malloy

   Original Contributions Pages: 548 - 558

7. The reciprocal protective effects of magnesium and calcium in hyperkalemic cardioplegic solutions on ischemic myocardium

   • N. Takemoto
   • H. Kuroda
   • T. Mori

   Original Contributions Pages: 559 - 569

8. Nitric oxide is an important determinant of coronary flow in the isolated blood perfused rat heart

   • P. Bouma
   • P. Ferdinandy
   • N. Westerhof

   Original Contributions Pages: 570 - 584

9. Antiproliferative effects of a c-myc antisense oligonucleotide on human arterial smooth muscle cells

   • M. Ebbecke
   • Ch. Unterberg
   • V. Wiegand

   Original Contributions Pages: 585 - 591

10. The electrophysiology of cardiac allograft rejection: Independent effects of rejection and perioperative ischemia on the sinus node recovery phenomenon after cardiac transplantation

    • G. Heinz
    • M. Hirschl
    • A. Laczkovics

    Original Contributions Pages: 592 - 599

11. Differential effects of quinidine and flecainide on plateau duration of human atrial action potential

    • S. Hatem
    • B. Le Grand
    • E. Deroubaix

    Original Contributions Pages: 600 - 609

12. A genetic abnormality of cardiac myocytes from the blind mutant (RC) chick heart: Abnormalities of cardiac structure and choline transport

    • S. W. Rabkin
    • K. M. Cheng

    Original Contributions Pages: 610 - 617