Gatseva, P., Vladeva, S., Pavlov, K. Incidence of goiter among children in a village with nitrate contamination of drinking water. Plovdiv: 1998 19-23,.
Gatseva, P., Vladeva, S., Pavlov, K. Incidence of goiter among children in a village with nitrate contamination of drinking water. Plovdiv: 1998 19-23,.
Gatseva, P., Vladeva, S., Pavlov, K. (1998) Incidence of goiter among children in a village with nitrate contamination of drinking water, Plovdiv: 19-23,.
Gatseva, P., Vladeva, S., & Pavlov, K. (1998). Incidence of goiter among children in a village with nitrate contamination of drinking water. Plovdiv: 19-23.
Gatseva P, Vladeva S, Pavlov K. Incidence of goiter among children in a village with nitrate contamination of drinking water. Plovdiv: 1998. p. 19-23.