1919, Journal of the American Veterinary Medical Association, page 618:
The hog cholera pneumonia is a purely croupus type, usually involving the acrotic or cephalic lobe or portion of it, whereas, in hemorrhagic septicemia we find the larger portion of the lung involved. We may designate it as the ordinary type, but usually with an extravasated exudate similar to pleuro-pneumonia in cattle.
(mention?)
2015, John R. Wilson, Sarah Sharples, Evaluation of Human Work, page 596:
The most commonly used tool to determine blood volume or circulation is PPG. […] Photoelectric PPG uses a photocell placed over an area of tissue perfused with blood. […] Two important characteristics of the PPG AC pulse waveform were described by Hertzman and Spealman (1937). The pulse was defined as having two phases. The first phase, called the acrotic phase, occurs at the rising edge of the pulse and is primarily concerned with systole; […]