Leo Schamroth had written his introduction for exactly this moment: not for journals or citations, but for a farmer in a fragile bed, and a doctor who refused to let the signal fade to noise.
Dhruv opened his eyes.
Mira ran back to Dhruv. The monitor had indeed flattened into a sine wave—smooth, undulating, deadly. She ordered calcium gluconate, insulin, glucose, and a dialysis team. Thirty minutes later, the sine wave broke apart. A p-wave emerged. Then a narrow QRS. leo schamroth an introduction to electrocardiography pdf 113