Recommendations regarding oseltamivir are controversial as are criticisms of the recommendations. Others advance normative theses, by making specific policy recommendations. There are no specific recommendations for periodic ophthalmological monitoring. Christine Gray analyses the issues of implementing the recommendations of the Brahimi Report. Specific sleep hygiene recommendations have changed over time. The statement did not contain a timeframe for implementing its recommendations. She explains the difficulty in implementing these recommendations. Other sites focus on playlist creation aided by personalized song recommendations, ratings, and reviews. Many of these recommendations have been adopted. None of these recommendations were implemented. The applications provided features such as synchronised lyrics, music reviews, and song recommendations. The EPA responded with a commitment to conduct research addressing the NRC recommendations. Britain had asked for U.S assistance in implementing the recommendations. Significant progress has been made to improve full compliance with anti-money laundering recommendations. The NTSB is an investigative body that has the power to make only policy recommendations.