{HEAD ~ Increased yield} and purity of the growth hormone is obtained by using controlled amounts of polyethylene glycol as precipitating {TAIL ~ agent} at pH = 4 6, preferably 4.5 5.0 and separating the precipitated fractions 
{ HEAD ~ Increased yield } and purity of the growth hormone is obtained by using controlled amounts of polyethylene glycol as precipitating { TAIL ~ agent } at pH = 4 6 , preferably 4.5 5.0 and separating the precipitated fractions
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH