function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barševskis, Arvīds', 1],
    ['Bollino, Maurizio', 6],
    ['Bollino, Maurizio & Rukmane, Anita & Mohagan, Noel', 2],
    ['Cabras, Analyn Anzano & Medina, Milton Norman & Donato, Joshua', 1],
    ['Kuschel, Guillermo', 1],
    ['Rukmane, Anita', 243],
    ['Yoshitake, Hiraku & Bollino, Maurizio & Sandel, Franco', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=255)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);