“…Hb Bart's, in extremely variable amount, has been found in conditions ranging from the asymptomatic newborns (Tuchinda et al, 1959;Lie-Injo, 1959;Vella, 1959;Hendrickse et al, 1960;Fessas, 1960;Lie-Injo and Ti, 1961 ;Schneider and Haggard, 1961 ;Minnich et al, 1962 ;Silvestroni and Bianco, 1962 ;Weatherall, 1963) (Lie-Injo et al, 1962 ;Banwell and Strickland, 1965;Diamond et al, 1965 ;Wong, 1965 ;Pootrakul et al, 1967).…”