tokens: The most common regimens were 3TC + d4T + nevirapine ( NVP ) ( 54 . 8 % ) , zidovudine ( AZT ) + 3TC + NVP ( 14 . 5 % ) , 3TC + d4T + efavirenz ( EFV ) ( 20 . 1 % ) , and AZT + 3TC + EFV ( 5 . 4 % ) .