function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beyarslan, Ahmet & Fischer, Maximilian', 4],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 28],
    ['Dolati, Sana & Talebi, Ali Asghar', 1],
    ['Gadallah, Neveen S. & Ghahari, Hassan', 4],
    ['Ghahari, H. & Fischer, M. & Sakenin, H. & Imani, S.', 1],
    ['Khajeh, Nahid & Rakhshani, Ehshan', 3],
    ['Walker, Andrea K. & Wharton, Robert A.', 12],
    ['Wharton, Robert & Ward, Lauren & Miko, Istvan', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);