function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahl, E.', 3],
    ['Antonio C., M. E. & Kullander, Sven O. & Lasso A., C. A.', 1],
    ['Britzke, Ricardo & Oliveira, Claudio & Kullander, Sven O.', 1],
    ['Fowler, Henry Weed', 1],
    ['Hein, G. & Zarske, A. & Zapata, J.', 1],
    ['Hoedeman, J. J.', 1],
    ['Hui, Tan Heok & Peng, Kelvin Lim Kok & Huan, Liew Jia', 1],
    ['Jonathan S. Ready & Sven O. Kullander', 1],
    ['Kullander, Sven O & Ferreira, Efrem J. G.', 2],
    ['Kullander, Sven O.', 15],
    ['Meinken, H.', 4],
    ['Myers, G. S. & Rofen, Robert R.', 1],
    ['Myers, George Sprague & Harry, Robert Rees', 1],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 1],
    ['Römer, U.', 1],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);