Registre de correu electrònic: On the Unity of Poison in Scarlet, Typhoid, and Puerperal Fevers; Erysipelas, Diphtheria, Sore Throats, Certain Forms of Diarrhœa, and Allied Affections; Pleurisy, Pneumonia, Pleuro-Pneumonia; and Many Other Ailments Usually Considered to Be Separate and Entirely Distinct Diseases