Sorry. It is an article published in Canadian Veterinary Journal entitled,"Observations on topical ivermectin in the treatment of otoacariosis, cheyletiellosis, and toxocariosis in cats." It is a link to the article through the database PubMed. As a scientist who uses the database every day, I forget that others won't recognize the url.
There is a pdf attached.
From the Methods section:
"A total of 45 cats were enrolled in the study. All cats received topical treatments with 0.5% alcohol-based (pour-on) formulation of ivermectin for cattle at the dose of 500 ug/kg BW (0.1 mL/kg). The ivermectin solution was applied in a narrow strip on the skin over the dorsum between the shoulder blades."
In the end all cats were perfectly healthy. The Ivermectin was an effective treatment for: "This practical treatment was effective in 96% (23/24) of cases of feline otoacariosis and in 100% (20/20) of cats with toxocariosis. All cats with cheyletiellosis (16/16) received 4 treatments and had resolution of clinical signs."