function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Elgharbawy, Ali A. & Rasool, Iftekhar', 2],
    ['Ahmadi, Marzieh & Esfandiari, Mehdi & Muilwijk, Jan', 1],
    ['Aston, Paul', 1],
    ['Azadbakhsh, Saeed & Nozari, Jamasb', 1],
    ['Bousquet, Yves', 6],
    ['Faisal, Mohammad & Singh, Sudhir', 1],
    ['Felix, Ron F. F. L.', 1],
    ['Felix, Ron F. F. L. & Farkač, Jan & Suleiman, Ahmed Saeed', 1],
    ['Johnston, M. Andrew & Waite, Evan S. & Wright, Ethan R', 1],
    ['Kavanaugh, David H. & Cueva-Dabkoski, Mollie & Liang, Hongbin', 5],
    ['Martinez, Claudia', 4],
    ['Merene, Yeshitla & Lorenz, Wolfgang & Opgenoorth, Lars', 3],
    ['Santos, Guilherme Ide Marques Dos', 1],
    ['Serrano, Artur R. M. & Capela, Rúben A.', 1],
    ['Shpeley, Danny & Ball, George E.', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    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);