1. Cholinesterase of blood in relation to organic phosphate insecticides;Klendshoj;New York State J. Med.,1953
2. The effects of anticholinesterase agents on the blood cholinesterases levels of normal and glaucoma subjects;Leopold;Tr. Am. Ophth., Soc.,1959
3. Ocular cholinesterase and cholinesterase inhibitors: The Friedenwald Memorial Lecture;Leopold;Am. J. Ophth.,1961