TB 500 maka ụmụ mmadụ
Mucus na Mucin nwere ike ịghọ ọgwụ nke ọdịnihu iji nyere aka ịmepụta ọgwụgwọ ahụike ọhụrụ
Mucus na Mucin nwere ike ịghọ ọgwụ nke ọdịnihu iji nyere aka ịmepụta ọgwụgwọ ahụ
Mucus na Mucin nwere ike ịghọ ọgwụ nke ọdịnihu iji nyere aka ịmepụta ọgwụgwọ ahụ