function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 8],
    ['Frey, David & Gayubo, Severiano Fernández & Mokrousov, Mikhail', 3],
    ['H, Phong & G, P. & N, Yuriy', 8],
    ['Jacobs, Hans-Joachim & Liebig, Wolf-Harald', 2],
    ['Jahantigh, Fatemeh & Rakhshani, Ehsan & Mokhtari, Azizollah', 3],
    ['Madl, M.', 5],
    ['Martynova, K. V. & Fateryga, A. V.', 1],
    ['Mokrousov, M. V. & Proshchalykin, M. Yu. & Aliyev, Kh. A.', 4],
    ['Mokrousov, Mikhail', 1],
    ['Taylor, Christopher K. & Barthelemy, Christophe', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);