Rancid - Black Lung Tabs

song-black Lung
artist-Rancid
Album-Life wont wait
This is my First Tab and i think it's correct. but if anyone has suggestions for me 

Intro:

e--------------------------------------------------------|
b--------------------------------------------------------|do that
g-5----3----5----7----5----3----5----5----3----3----5----| about
d--------------------------------------------------------| twice
a--------------------------------------------------------|
e--------------------------------------------------------|

e-5------------------------------------------------------|
b-----6--------------------------------------------------|do that
g--------------5-----------------------------------------| about
d--------------------------------------------------------|3 times
a--------------------------------------------------------|
e--------------------------------------------------------|

Chorus:

e------------------------------------------------------------------------|
b------------------------------------------------------------------------|
g----------3333333---6666666-------------------3333333--6666666----------|
d-3333333--3333333---6666666--666666--3333333--3333333--6666666--6666666-|
a-3333333--1111111---4444444--666666--3333333--1111111--4444444--6666666-|
e-1111111---------------------444444--1111111--------------------4444444-|

e------------------------------------------------------------------------|
b------------------------------------------------------------------------|
g-3333333--6666666-------------------------------------------------------|
d-3333333--6666666--6----------------------------------------------------|
a-1111111--4444444--6----------------------------------------------------|
e-------------------4----------------------------------------------------|


can't figure out the part where it goes "hey unbeliever black lung fever transmit whatever..."