आलत्रासाउन्दफोरखौ रुजुजाथाव महरै खैफोद गोयै होन्ना गनायदों आरो बेयो 35 बोसोरनि बांसिननि थाखाय गोरबो थानायखौ आन्जाद नायनायाव बोहोय जाबाय ।
Ultrasounds are considered relatively safe and have been used for over 35 years for monitoring pregnancy .