function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adams, Arthur', 1],
    ['Born, Ignaz von', 1],
    ['Brown, John & Sowerby (2), G. B.', 1],
    ['Da Costa, Emanuel Mendes', 2],
    ['Geiger, Daniel L.', 2],
    ['Gulbin, V. V. & Ivin, V. V.', 2],
    ['Habe, Tadashige & Ito, Kiyoshi', 4],
    ['Kantor, Yuri & Sirenko, Boris & Zvonareva, Sofya S.', 6],
    ['Kantor, Yuri I. & Sirenko, Boris I.', 2],
    ['Linnaeus, Carolus', 48],
    ['Mclean, James H. & Clark, Roger N.', 3],
    ['Müller, Otto Friedrich', 5],
    ['Neubauer, Thomas A.', 4],
    ['Sowerby, James DeCarle', 2],
    ['Strøm, Hans', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=87)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);