function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Elgharbawy, Ali A. & Rasool, Iftekhar', 1],
    ['Acal, Dale Ann P. & Wiesner, Juergen & Nuneza, Olga M.', 4],
    ['Assmann, Thorsten & Boutaud, Esteve & Buse, Joern', 9],
    ['Damken, Claas & Wiesner, Jürgen & Wahab, Rodzay Abdul', 1],
    ['Dangalle, Chandima & Pallewatta, Nirmalie & Vogler, Alfried', 1],
    ['Felix, Ron F. F. L. & Farkač, Jan & Suleiman, Ahmed Saeed', 1],
    ['Hristovski, Slavčo & Guéorguiev, Borislav', 2],
    ['Keller, Oliver & Schnepp, Kyle E. & Ashman, Krystal L.', 1],
    ['Kostova, Rumyana & Gueorguiev, Borislav', 2],
    ['Matalin, A. V.', 2],
    ['Matalin, Andrey V. & Chikatunov, Vladimir I.', 3],
    ['Medina, Milton Norman D. & Cabras, Analyn D. & Ibanez, Jayson', 1],
    ['Merene, Yeshitla & Lorenz, Wolfgang & Opgenoorth, Lars', 3],
    ['Wiesner, Jürgen & Bandinelli, Aligi & Matalin, Andrey', 10],
    ['Wiesner, Jürgen & Constant, Jérôme', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);