They laugh alike, they walk alike, at times they even talk alike! You can lose your mind, when cousins are two of a kind! So went the theme song to television’s The Patty Duke Show, starring the former Anna Marie Duke as “identical cousins” Patty and Cathy Lane. We’re told in Sid Ramin and Robert Wells’ theme song that the worldly Cathy “adores a minuet, The Ballets Russes and crepe suzette,” but the normal New York teen Patty “loves to rock and roll!” So, apparently, did Patty Duke, based