42 Computer programming services, computer software programming services, computer software installation services, technical support services, namely, troubleshooting of computer hardware and software problems, computer software maintenance services, and computer and computer software consulting services, all in the fields of medical imaging, radiological imaging, digital imaging, medical imaging systems, radiological imaging systems, digital imaging systems, picture archiving communication systems, computer systems, computer hardware, computer workstations, computer servers, medical imaging system hardware, radiological imaging system hardware, digital imaging system hardware, picture archived and communications systems, nuclear medicine, magnetic resonance imaging, ultra sound, computed radiology modalities, entering medical and patient data, storing medical and patient data, archiving medical and patient data, reporting and medical and patient data, transmitting medical and patient data, and acquiring, capturing, retrieving, organizing, tracking, analyzing, viewing, enlarging, rotating, modifying, annotating, storing, securing, duplicating, printing and transmitting radiological images