function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. M', 150],
    ['Broad, Gavin R.', 5810],
    ['Horstmann, K.', 255],
    ['Khalaim, Andrey I. & Ruíz-Cancino, Enrique', 159],
    ['Klopfstein, Seraina', 161],
    ['Kolarov, J.', 913],
    ['Madl, Michael & O, Tersilochinae.', 139],
    ['Moreno, Alejandra González - & Bordera, Santiago', 141],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 1254],
    ['Riedel, M.', 267],
    ['Riedel, Matthias', 635],
    ['Riedel, Matthias & Diller, Erich & Japoshvili, George', 352],
    ['Schwarz, Martin', 185],
    ['Varga, Oleksandr', 218],
    ['Varga, Oleksandr & Riedel, Matthias & Diller, Erich', 164],
    ['Other (470)', 6292]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17095)',
    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);