Optimizing Response Rates to Examine Health IT Maturity and Nurse Practitioner Care Environments in US Nursing Homes: Mixed Mode Survey Recruitment Protocol oleh Gregory L Alexander, Lusine Poghosyan, Yihong Zhao, Mollie Hobensack, Sergey Kisselev, Allison A Norful, John McHugh, Keely Wise, M Brooke Schrimpf, Ann Kolanowski, Tamanna Bhatia, Sabrina Tasnova