source: [lemma=□] □
destination: [lemma=enter] □
spec: Address Valid : Indicate the length of time that you will receive mail at the mailing address just entered , by checking the " indefinitely " box , or by entering the last month and year you will receive mail there , in the spaces provided . I did not have a talent for machine work and could not wait to escape that little town , at least for nine months , to the world of the university . Valid : Indicate the length of time that you will receive mail at the mailing address just entered , by checking the " indefinitely " box , or by entering the last month and year you will receive mail there , in the spaces provided . The Chair now calls forward Dr. Samuel Waksal , Ph.D ., who is the former chief executive officer of ImClone Systems .