function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 11],
    ['Harzhauser, Mathias & Landau, Bernard', 3],
    ['Helwerda, Enate A.', 6],
    ['Monnier, Eric & Tenorio, Manuel J. & Bouchet, Philippe', 1],
    ['Ravinesh, Raveendhiran & Kumar, Appukuttannair Biju', 2],
    ['Tenorio, Manuel J. & Puillandre, Nicolas', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);