Incidence of typhoid-paratyphoid infections in Valencia in relation to the levels of drinking water purification and sanitation conditions

Llopis González A, Gonźalez Arráez JI, Saiz Sánchez MC, Sabater Pons A, Cortina Greus P. Incidence of typhoid-paratyphoid infections in Valencia in relation to the levels of drinking water purification and sanitation conditions. Rev Sanid Hig Publica (Madr). 1986; 60(5-6): 443-50.