function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brown, Richard L. & Jaeger, Christi', 1],
    ['Ferris, Clifford D.', 1],
    ['Gilligan, Todd M. & Matthews, Deborah L. & Miller, Jacqueline Y.', 1],
    ['Gilligan, Todd M. & Wright, Donald J.', 3],
    ['Huemer, Peter & Van Nieukerken, Erik J.', 1],
    ['Kopp, Andreas & Keller, W. C. F.', 1],
    ['Meyrick, Edward', 1],
    ['Pathania, Prakash C. & Das, Apurva & Chandra, Kailash', 23],
    ['Poltavsky, Alexander N.', 1],
    ['Razowski, Józef & Aarvik, Leif & Prins, Jurate De', 2],
    ['Zlatkov, Boyan & Huemer, Peter', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);