function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akhtar, Mir Samim & Dey, Debjani & Usmani, Mohd. Kamil', 2],
    ['Broad, Gavin R. & Shaw, Mark R. & Godfray, H. Charles J.', 12],
    ['Kavallieratos, Nickolas G. & Tomanović, Ž Eljko & Starý, Petr', 1],
    ['Kim, Sangjin & Ckrkic, Jelisaveta & Tomanovic, Zeljko', 1],
    ['Kos, Katarina & Trdan, Stanislav & Petrović, Andjeljko', 2],
    ['Lopes, Thomas & Libert, Pierre-Nicolas & Starý, Petr', 1],
    ['Rakhshani, Ehsan & Barahoei, Hossein & Ahmad, Zubair', 2],
    ['Sakenin, H. & Naderian, H. & Samin, N. & Rastegar, J.', 1],
    ['Samin, N. & Ghahari, H. & N. S & Davidian, E.', 1],
    ['Tomanović, Željko & Petrović, Andjeljko & Kocić, Korana', 1],
    ['Čkrkić, Jelisaveta & Petrović, Andjeljko & Kocić, Korana', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);