function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agarwal, S. M.', 1],
    ['Brant, Sara V. & Jouet, Damien & Ferte, Hubert & Loker, Eric S.', 2],
    ['Corkum, Kenneth C.', 1],
    ['Dollfus, R. P.', 1],
    ['Haderlie, E. C.', 1],
    ['Kaw, B. L.', 1],
    ['Long, So & Lee, Wei-chu', 1],
    ['Rankin, John S.', 1],
    ['Singh, H. S. & Sharma, Bindu', 1],
    ['Szidat, L. & Nani, A.', 1],
    ['Tang, Chong-ti & Tang, Zhong-zhang', 1],
    ['Travassos, L.', 1],
    ['Vercammen-Grandjean, P. H.', 1],
    ['Vogel, H. & Minning, W.', 1],
    ['Wang, Guitang & Wang, Wei-Jun', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);