function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bitner, Maria Aleksandra', 13],
    ['Bitner, Maria Aleksandra & Logan, Alan', 4],
    ['Bitner, Maria Aleksandra & Moissette, Pierre', 2],
    ['Blaschke, F.', 1],
    ['Dall, William Healey', 1],
    ['Doweld, Alexander B.', 1],
    ['Fauré, Philippe & Alméras, Yves & Sekatni, Najla', 10],
    ['Fauré, Philippe & Alméras, Yves & Sekatni, Nejla', 4],
    ['Lowry, J. K. & Myers, A. A.', 1],
    ['Modzalevskaya, Tatiana L.', 4],
    ['Rezende, João Marcelo Pais De & Machado, Deusana Maria Da Costa', 4],
    ['Sandy, Michael R. & Hryniewicz, Krzysztof & Hammer, Øyvind', 5],
    ['Schemm-Gregory, Mena & Henriques, Maria Helena', 15],
    ['Sulser, H. & Hostettler, Bernhard', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    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);