00321nam a22001097a 4500001001300000003000400013005001700017008004100034245005800075580006500133650001300198D0001J000506DOH20210421134931.0210421b           ||||| |||| 00| 0 eng d00aTheory and practice of research /cRicardo S. Guanzon  a
The Filipino Family Physician, 1998 36 ( 4 ) pages  151-154 2aResearch