function sendEmailToDoctor($doctorEmail)
 {
     $message = 'Hello!<br/><br/>' . 'You recently had an appointment with ' . $this->patientName . '. Email of patient is: ' . $this->patientEmail . '. Here is' . ' the receipt of the diagnosis form that you submitted: $' . $this->amount_due . '. Attached is the official bill for the service' . '<br/><br/>Thank you,<br/>Wal Consulting';
     $email = new SendEmail();
     return $email->SendEmailWithAttachment($this->prescriptionID, $this->db, $this->patientName, $this->doctorName, $this->observations, $this->diagnosis, $this->medication, $this->amount_due, $doctorEmail, "Diagnosis and Billing", $message);
 }