They are a group of spammers and scammers. The same group that mass spams faxs. They do not verify numbers they just mass spam them and there is no way to get off their lists. They just keep spamming and spamming any number they find even if it is a place of business and not a residence.
Nigerian Medical Association was created in 1951.
Aerospace Medical Association was created in 1929.
Argentine Medical Association was created in 1891.
Ontario Medical Association was created in 1880.
Catholic Medical Association was created in 1932.
Estonian Medical Association was created in 1921.
Canadian Medical Association was created in 1867.
Indian Medical Association was created in 1928.
World Medical Association was created in 1947.
Association of Medical Illustrators was created in 1945.
National Medical Association was created in 1895.
British Medical Association was created in 1832.