function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baur, Hannes', 1],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 62],
    ['Ferrière, Ch.', 1],
    ['Gadallah, Neveen S. & Yefremova, Zoya A.', 1],
    ['Gumovsky, Alex', 2],
    ['Gumovsky, Alex & Little, Dave De & Rothmann, Sergio', 1],
    ['Gumovsky, Alex V.', 2],
    ['Jamali, Mohd Majid & Zeya, Shahid Bin', 1],
    ['Kosheleva, O. V.', 3],
    ['Li, Ming-Rui & Li, Cheng-De', 4],
    ['Madl, Michael & M, Atoposoma & W, Diglyphus', 4],
    ['Pérez-Benavides, A. Lucía & Hernández-Baz, Fernando', 8],
    ['Walker, Francis', 152],
    ['Yefremova, Zoya A.', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=247)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);