अब्लाबो , मोनसे बावैसो जानाय नायबिजिरनायाव मोनदों दि बिमायारि थांखु सोबनाया गथनि आय किउआव जेबो थोंजों गाज्रि जाउन गैया ।
However a recent study finds that maternal tobacco smoking has no direct causal effect on the child's IQ .