function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguilera-Uribe, Magali & Martínez, Juan José', 4],
    ['Ahmad, Zubair & Ghramh, Hamed A. & Ansari, Anjum', 3],
    ['Belokobylskij, S. A. & Ku, D. - S.', 3],
    ['Belokobylskij, Sergey A. & Kula, Robert R.', 7],
    ['Beyarslan, Ahmet', 1],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 2],
    ['Gupta, Ankita & Van Achterberg, Cornelis', 1],
    ['Madl, M. & Achterberg, C. Van', 1],
    ['Martinez, Juan Jose & Ceccarelli, Fadia Sara', 2],
    ['Sakenin Chelav, H. & Coronado-Blanco, J. M. & Samin, N.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);