LEADER 00000nas  2200000 i 4500 
008    071031d19741981us zx p r     000 a0eng d 
022    0097-9090 
040    UZ.MED 
080    (051)613.888 
210 00 Popul. rep., I, Period. abstin|b(Engl. ed.)    
222  0 Population reports. Series I, Periodic abstinence (English
       ed.)  
245 00 Population reports.|nSeries I,|pPeriodic abstinence /
       |cGeorge Washington University, Johns Hopkins University 
260    Washington :|bDept. of Medical and Public Affairs, George 
       Washington University Medical Center,|c1974-1981 
300    |c28 cm 
310    Irregular 
362 0  N. 1 (1974)-n. 3 (1981) 
650 04 Contraceptivos|vPublicaciones periĆ³dicas 
710 2  George Washington University Medical Center 
710 2  Johns Hopkins University 

SignaturaC-16/4
UbicaciĆ³nB.Medicina-Hemeroteca 
En bibliotecaFondos: 1980