function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barševskis, Arvīds & Janovska, Marina & Aksjuta, Kristīna', 1],
    ['Bezděk, Aleš & Hájek, Jiří & Ascr, Biology Centre', 13],
    ['Dupuis, Fabien', 5],
    ['Freese, Edwin L. & Veal, Doug A. & Lago, Paul K.', 16],
    ['Gasca-Álvarez, Héctor Jaime & Deloya, Cuauhtémoc', 2],
    ['Kaneko, Naoki & Wada, Kaoru', 3],
    ['Kirby, William', 1],
    ['Ochi, Teruo & Kon, Masahiro & Bai, Ming Dr.', 1],
    ['Ratcliffe, Brett C.', 2],
    ['Ziani, Stefano & Bezděk, Aleš & Branco, Tristão', 3],
    ['van der Merwe, Y. & Scholtz, Clarke H.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);