004880000a22001450004500003000900000005001700009110007500026245009600101020001800197264004900215490003900264300000900303041000800312650002200320PH-MaWHO20241108112319.0  aWorld Health Organization Expert Group on Prematurity (1950 : Geneva).  aExpert Group on Prematurity : final report [on a meeting held in] Geneva, 17-21 April 1950.  a92-4-120027-8  aGeneva : bWorld Health Organization,c1950.  a(WHO technical report series ; 27)  a12p.  aeng  aInfant, Premature