function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brandley, Matthew C. & Fls, Hidetoshi Ota & Hikida, Tsutomu', 4],
    ['Castiglia, Riccardo & Annesi, Flavia & Bezerra, Alexandra M. R.', 2],
    ['Feria-Ortiz, Manuel & García-Vázquez, Uri Omar', 1],
    ['Jones, Dillon & Foshee, Bethany & Fitzgerald, Lee', 1],
    ['Kurita, Kazuki & Ota, Hidetoshi & Hikida, Tsutomu', 1],
    ['Okamoto, Taku & Hikida, Tsutomu', 3],
    ['Pavón-Vázquez, Carlos J. & Oca, Adrián Nieto-Montes De', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    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);