function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 22],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 29],
    ['Dean, W. Richard J. & Åhlander, Erik & Johansson, Ulf S.', 11],
    ['Frahnert, Sylke & Turner, Donald A. & Bracker, Cordula', 14],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 7],
    ['Horsfield, Thomas', 3],
    ['Jansen, Justin J. F. J.', 7],
    ['Kumar Arya, Sumit & Gopi, Govindan Veeraswami', 7],
    ['Mary & Croy', 24],
    ['Mlíkovský, Jiří', 7],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 4],
    ['Salvador, Rodrigo B. & Jeugd, Henk Van Der', 4],
    ['Shirihai, Hadoram & Schweizer, Manuel & Kirwan, Guy M.', 3],
    ['Temminck, Coenraad Jacob', 9],
    ['Vieillot, Louis Pierre', 7],
    ['Other (25)', 34]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=192)',
    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);