function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aich, Upama', 1],
    ['Azadbakhsh, Saeed & Nozari, Jamasb', 1],
    ['Barševskis, Arvīds & Janovska, Marina & Aksjuta, Kristīna', 1],
    ['Bousquet, Yves', 30],
    ['Chittaro, Yannick & Claude, François & Hoess, René', 1],
    ['Guéorguiev, B.', 7],
    ['Hoess, René', 3],
    ['Hristovski, Slavčo & Guéorguiev, Borislav', 9],
    ['Hunting, Wesley M.', 17],
    ['Johnston, M. Andrew & Waite, Evan S. & Wright, Ethan R', 1],
    ['Kabak, I. I. & Schmidt, J.', 1],
    ['Kabak, I. I. & Wrase, D. W.', 1],
    ['Kostova, Rumyana & Gueorguiev, Borislav', 6],
    ['Merene, Yeshitla & Lorenz, Wolfgang & Opgenoorth, Lars', 4],
    ['Rasool, Iftekhar & Felix, Ron F. F. L. & Abdel-Dayem, Mahmoud S.', 4],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);