function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Jarvis, Charlie', 5],
    ['Landeros, Fidel & Ferrusca-Rico, Felipe M.', 1],
    ['Mohamed Abdelhamid, Marouf Abdel-Aty & Moustafa Azab, Mahmoud', 1],
    ['Wang, Xin-Cun & Liu, Tie-Zhi & Chen, Shuang-Lin & Li, Yi', 5],
    ['Xu, Yu-Yan & Yan, Xiang-Yuan & Li, Ting & Fan, Li', 4],
    ['Zhao, Qi & Brooks, Siraprapa & Zhao, Yong-Chan & Yang, Zhu L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);