function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amorim, Dalton De Souza & Oliveira, Sarah Siqueira', 4],
    ['Banamar, Ouarda & Chandler, Peter J. & Driauach, Ouafaa', 13],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 2],
    ['Chandler, Peter J.', 17],
    ['Harrison, Roy A.', 1],
    ['Hudson, George Vernon', 1],
    ['Jakovlev, Jevgeni & Salmela, Jukka & Polevoi, Alexei', 36],
    ['Juergenstein, Siiri & Kurina, Olavi & Poldmaa, Kadri', 9],
    ['Kolcsár, Levente-Péter & Salmela, Jukka', 4],
    ['Kurina, Olavi', 49],
    ['Oliveira, Sarah Siqueira & Amorim, Dalton De Souza', 4],
    ['Polevoi, A. V. & Potapova, N. K.', 4],
    ['Salmela, Jukka & Kaunisto, Kari M', 4],
    ['Sasakawa, Mitsuhiro', 3],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 3],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=157)',
    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);