function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carriol, René-Pierre & Bonde, Niels & Jakobsen, Sten L.', 2],
    ['Chan, Benny K. K. & Dreyer, Niklas & Gale, Andy S.', 5],
    ['Drushchits, V. V. & Zevina, G. B.', 1],
    ['Pitriana, Pipit & Jones, Diana S. & Corbari, Laure', 38],
    ['Pitriana, Pipit & Valente, Luis & von Rintelen, Thomas', 1],
    ['Ren, Xian-Qiu & Sha, Zhong-Li', 4],
    ['Withers, T. H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=52)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);