Neuro-Ophthalmology & Neuro-Otology
Unusual retinopathies
Mar. 13, 2022
This is an image preview.
Start a Free Account
to view the full image.
-
Nearly 3,000 illustrations, including video clips of neurologic disorders.
-
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
-
Full spectrum of neurology in 1,200 comprehensive articles.
-
Listen to MedLink on the go with Audio versions of each article.
Railroad car unloader shovels finely ground quartz while investigator collects dust samples
A railroad car unloader shovels finely ground quartz into a wheelbarrow at a West Virginia pottery factory, while a US Public Health Service investigator collects dust samples in his breathing zone with an impringer. (Source: CDC/Barbara Jenkins, NIOSH, 1936. Flinn RH. Neal PA, Reinhart WH, Dallavalle JM. Fulton WB, Dooley AE. Chronic manganese poisoning in an ore-crushing mill. Public Health Bulletin 1940;247:1-77. Public Health Image Library, Centers for Disease Control and Prevention, Atlanta, Georgia. Public domain.)