George M. Gould,
Anomalies and Curiosities of Medicine
“ Cowan speaks of a shoemaker of twenty-two who experienced an attack of constant singultus for a week, and then intermittent attacks for six years. Cowan also mentions instances of prolonged hiccough related by Heberden, Good, Hoffman, and Wartmouth. Barrett is accredited with reporting a case of persistent hiccough in a man of thirty-five. Rowland speaks of a man of thirty-five who hiccoughed for twelve years. The paroxysms were almost constant, and occurred once or twice a minute during the hours when the man was not sleeping. ”
